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    <link:label xlink:label="us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardNonOptionEquityInstrumentsExercised-label" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardNonOptionEquityInstrumentsExercised</link:label>
    <link:label xlink:label="us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardNonOptionEquityInstrumentsExercised-label" xlink:role="http://www.xbrl.org/2009/role/negatedLabel" xlink:type="resource" xml:lang="en-US">Number of Shares Exercised (in shares)</link:label>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardNonOptionEquityInstrumentsExercised" xlink:to="us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardNonOptionEquityInstrumentsExercised-label" xlink:type="arc"/>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_AccountsPayableCurrent" xlink:label="us-gaap_AccountsPayableCurrent" xlink:type="locator"/>
    <link:label xlink:label="us-gaap_AccountsPayableCurrent-label" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Accounts Payable</link:label>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_AccountsPayableCurrent" xlink:to="us-gaap_AccountsPayableCurrent-label" xlink:type="arc"/>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardNonOptionEquityInstrumentsExpirations" xlink:label="us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardNonOptionEquityInstrumentsExpirations" xlink:type="locator"/>
    <link:label xlink:label="us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardNonOptionEquityInstrumentsExpirations-label" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardNonOptionEquityInstrumentsExpirations</link:label>
    <link:label xlink:label="us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardNonOptionEquityInstrumentsExpirations-label" xlink:role="http://www.xbrl.org/2009/role/negatedLabel" xlink:type="resource" xml:lang="en-US">Number of Shares Expired (in shares)</link:label>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardNonOptionEquityInstrumentsExpirations" xlink:to="us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardNonOptionEquityInstrumentsExpirations-label" xlink:type="arc"/>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingNumber" xlink:label="us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingNumber" xlink:type="locator"/>
    <link:label xlink:label="us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingNumber-label" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Shares, options (in shares)</link:label>
    <link:label xlink:label="us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingNumber-label" xlink:role="http://www.xbrl.org/2003/role/periodStartLabel" xlink:type="resource" xml:lang="en-US">Number of Shares Outstanding (in shares)</link:label>
    <link:label xlink:label="us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingNumber-label" xlink:role="http://www.xbrl.org/2003/role/periodEndLabel" xlink:type="resource" xml:lang="en-US">Number of Shares Outstanding (in shares)</link:label>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingNumber" xlink:to="us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingNumber-label" xlink:type="arc"/>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardNonOptionEquityInstrumentsGranted" xlink:label="us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardNonOptionEquityInstrumentsGranted" xlink:type="locator"/>
    <link:label xlink:label="us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardNonOptionEquityInstrumentsGranted-label" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Number of Shares Issued (in shares)</link:label>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardNonOptionEquityInstrumentsGranted" xlink:to="us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardNonOptionEquityInstrumentsGranted-label" xlink:type="arc"/>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsExpirationsInPeriod" xlink:label="us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsExpirationsInPeriod" xlink:type="locator"/>
    <link:label xlink:label="us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsExpirationsInPeriod-label" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsExpirationsInPeriod</link:label>
    <link:label xlink:label="us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsExpirationsInPeriod-label" xlink:role="http://www.xbrl.org/2009/role/negatedLabel" xlink:type="resource" xml:lang="en-US">Number of Shares Expired (in shares)</link:label>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsExpirationsInPeriod" xlink:to="us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsExpirationsInPeriod-label" xlink:type="arc"/>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_PolicyTextBlockAbstract" xlink:label="us-gaap_PolicyTextBlockAbstract" xlink:type="locator"/>
    <link:label xlink:label="us-gaap_PolicyTextBlockAbstract-label" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">us-gaap_PolicyTextBlockAbstract</link:label>
    <link:label xlink:label="us-gaap_PolicyTextBlockAbstract-label" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Accounting Policies</link:label>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_PolicyTextBlockAbstract" xlink:to="us-gaap_PolicyTextBlockAbstract-label" xlink:type="arc"/>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_IncrementalCommonSharesAttributableToCallOptionsAndWarrants" xlink:label="us-gaap_IncrementalCommonSharesAttributableToCallOptionsAndWarrants" xlink:type="locator"/>
    <link:label xlink:label="us-gaap_IncrementalCommonSharesAttributableToCallOptionsAndWarrants-label" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Effect of diluted stock options, warrants and preferred stock (1) (in shares)</link:label>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_IncrementalCommonSharesAttributableToCallOptionsAndWarrants" xlink:to="us-gaap_IncrementalCommonSharesAttributableToCallOptionsAndWarrants-label" xlink:type="arc"/>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_TransferToInvestments" xlink:label="us-gaap_TransferToInvestments" xlink:type="locator"/>
    <link:label xlink:label="us-gaap_TransferToInvestments-label" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Equity method investment - Helomics</link:label>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_TransferToInvestments" xlink:to="us-gaap_TransferToInvestments-label" xlink:type="arc"/>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_PaymentsToAcquireIntangibleAssets" xlink:label="us-gaap_PaymentsToAcquireIntangibleAssets" xlink:type="locator"/>
    <link:label xlink:label="us-gaap_PaymentsToAcquireIntangibleAssets-label" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">us-gaap_PaymentsToAcquireIntangibleAssets</link:label>
    <link:label xlink:label="us-gaap_PaymentsToAcquireIntangibleAssets-label" xlink:role="http://www.xbrl.org/2009/role/negatedLabel" xlink:type="resource" xml:lang="en-US">Purchase of intangibles</link:label>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_PaymentsToAcquireIntangibleAssets" xlink:to="us-gaap_PaymentsToAcquireIntangibleAssets-label" xlink:type="arc"/>
    <link:loc xlink:href="aipt-20180630.xsd#aipt_StockOptionsTwentyNineMember" xlink:label="aipt_StockOptionsTwentyNineMember" xlink:type="locator"/>
    <link:label xlink:label="aipt_StockOptionsTwentyNineMember-label" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Stock Options Twenty Nine [Member]</link:label>
    <link:label xlink:label="aipt_StockOptionsTwentyNineMember-label" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">Represents information pertaining to the 29th stock options.</link:label>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="aipt_StockOptionsTwentyNineMember" xlink:to="aipt_StockOptionsTwentyNineMember-label" xlink:type="arc"/>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardPlanModificationIncrementalCompensationCost" xlink:label="us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardPlanModificationIncrementalCompensationCost" xlink:type="locator"/>
    <link:label xlink:label="us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardPlanModificationIncrementalCompensationCost-label" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardPlanModificationIncrementalCompensationCost</link:label>
    <link:label xlink:label="us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardPlanModificationIncrementalCompensationCost-label" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Share-based Compensation Arrangement by Share-based Payment Award, Plan Modification, Incremental Compensation Cost</link:label>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardPlanModificationIncrementalCompensationCost" xlink:to="us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardPlanModificationIncrementalCompensationCost-label" xlink:type="arc"/>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_PaymentsToAcquirePropertyPlantAndEquipment" xlink:label="us-gaap_PaymentsToAcquirePropertyPlantAndEquipment" xlink:type="locator"/>
    <link:label xlink:label="us-gaap_PaymentsToAcquirePropertyPlantAndEquipment-label" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">us-gaap_PaymentsToAcquirePropertyPlantAndEquipment</link:label>
    <link:label xlink:label="us-gaap_PaymentsToAcquirePropertyPlantAndEquipment-label" xlink:role="http://www.xbrl.org/2009/role/negatedLabel" xlink:type="resource" xml:lang="en-US">Purchase of fixed assets</link:label>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_PaymentsToAcquirePropertyPlantAndEquipment" xlink:to="us-gaap_PaymentsToAcquirePropertyPlantAndEquipment-label" xlink:type="arc"/>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_NoncashInvestingAndFinancingItemsAbstract" xlink:label="us-gaap_NoncashInvestingAndFinancingItemsAbstract" xlink:type="locator"/>
    <link:label xlink:label="us-gaap_NoncashInvestingAndFinancingItemsAbstract-label" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Non-cash transactions:</link:label>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_NoncashInvestingAndFinancingItemsAbstract" xlink:to="us-gaap_NoncashInvestingAndFinancingItemsAbstract-label" xlink:type="arc"/>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_SharebasedCompensationArrangementBySharebasedPaymentAwardExpirationPeriod" xlink:label="us-gaap_SharebasedCompensationArrangementBySharebasedPaymentAwardExpirationPeriod" xlink:type="locator"/>
    <link:label xlink:label="us-gaap_SharebasedCompensationArrangementBySharebasedPaymentAwardExpirationPeriod-label" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">us-gaap_SharebasedCompensationArrangementBySharebasedPaymentAwardExpirationPeriod</link:label>
    <link:label xlink:label="us-gaap_SharebasedCompensationArrangementBySharebasedPaymentAwardExpirationPeriod-label" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Share-based Compensation Arrangement by Share-based Payment Award, Expiration Period</link:label>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_SharebasedCompensationArrangementBySharebasedPaymentAwardExpirationPeriod" xlink:to="us-gaap_SharebasedCompensationArrangementBySharebasedPaymentAwardExpirationPeriod-label" xlink:type="arc"/>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardNumberOfSharesAuthorized" xlink:label="us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardNumberOfSharesAuthorized" xlink:type="locator"/>
    <link:label xlink:label="us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardNumberOfSharesAuthorized-label" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardNumberOfSharesAuthorized</link:label>
    <link:label xlink:label="us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardNumberOfSharesAuthorized-label" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Share-based Compensation Arrangement by Share-based Payment Award, Number of Shares Authorized</link:label>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardNumberOfSharesAuthorized" xlink:to="us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardNumberOfSharesAuthorized-label" xlink:type="arc"/>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardAwardVestingPeriod1" xlink:label="us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardAwardVestingPeriod1" xlink:type="locator"/>
    <link:label xlink:label="us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardAwardVestingPeriod1-label" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardAwardVestingPeriod1</link:label>
    <link:label xlink:label="us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardAwardVestingPeriod1-label" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Share-based Compensation Arrangement by Share-based Payment Award, Award Vesting Period</link:label>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardAwardVestingPeriod1" xlink:to="us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardAwardVestingPeriod1-label" xlink:type="arc"/>
    <link:loc xlink:href="aipt-20180630.xsd#aipt_NotesReceivableTerm" xlink:label="aipt_NotesReceivableTerm" xlink:type="locator"/>
    <link:label xlink:label="aipt_NotesReceivableTerm-label" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">aipt_NotesReceivableTerm</link:label>
    <link:label xlink:label="aipt_NotesReceivableTerm-label" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Notes Receivable, Term</link:label>
    <link:label xlink:label="aipt_NotesReceivableTerm-label" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">The period of time for the notes receivable, in PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days.</link:label>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="aipt_NotesReceivableTerm" xlink:to="aipt_NotesReceivableTerm-label" xlink:type="arc"/>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_LiabilitiesAndStockholdersEquityAbstract" xlink:label="us-gaap_LiabilitiesAndStockholdersEquityAbstract" xlink:type="locator"/>
    <link:label xlink:label="us-gaap_LiabilitiesAndStockholdersEquityAbstract-label" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">LIABILITIES AND STOCKHOLDERS' EQUITY</link:label>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_LiabilitiesAndStockholdersEquityAbstract" xlink:to="us-gaap_LiabilitiesAndStockholdersEquityAbstract-label" xlink:type="arc"/>
    <link:loc xlink:href="aipt-20180630.xsd#aipt_GLGPharmaLLCMember" xlink:label="aipt_GLGPharmaLLCMember" xlink:type="locator"/>
    <link:label xlink:label="aipt_GLGPharmaLLCMember-label" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">GLG Pharma, LLC. [Member]</link:label>
    <link:label xlink:label="aipt_GLGPharmaLLCMember-label" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">Represents information about partnership and reseller agreement with GLG Pharma, LLC.</link:label>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="aipt_GLGPharmaLLCMember" xlink:to="aipt_GLGPharmaLLCMember-label" xlink:type="arc"/>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_Assets" xlink:label="us-gaap_Assets" xlink:type="locator"/>
    <link:label xlink:label="us-gaap_Assets-label" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">us-gaap_Assets</link:label>
    <link:label xlink:label="us-gaap_Assets-label" xlink:role="http://www.xbrl.org/2003/role/totalLabel" xlink:type="resource" xml:lang="en-US">Total Assets</link:label>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_Assets" xlink:to="us-gaap_Assets-label" xlink:type="arc"/>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_DisclosureOfShareBasedCompensationArrangementsByShareBasedPaymentAwardTextBlock" xlink:label="us-gaap_DisclosureOfShareBasedCompensationArrangementsByShareBasedPaymentAwardTextBlock" xlink:type="locator"/>
    <link:label xlink:label="us-gaap_DisclosureOfShareBasedCompensationArrangementsByShareBasedPaymentAwardTextBlock-label" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Disclosure of Share-based Compensation Arrangements by Share-based Payment Award [Table Text Block]</link:label>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_DisclosureOfShareBasedCompensationArrangementsByShareBasedPaymentAwardTextBlock" xlink:to="us-gaap_DisclosureOfShareBasedCompensationArrangementsByShareBasedPaymentAwardTextBlock-label" xlink:type="arc"/>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_PlanNameAxis" xlink:label="us-gaap_PlanNameAxis" xlink:type="locator"/>
    <link:label xlink:label="us-gaap_PlanNameAxis-label" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Plan Name [Axis]</link:label>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_PlanNameAxis" xlink:to="us-gaap_PlanNameAxis-label" xlink:type="arc"/>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_PlanNameDomain" xlink:label="us-gaap_PlanNameDomain" xlink:type="locator"/>
    <link:label xlink:label="us-gaap_PlanNameDomain-label" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Plan Name [Domain]</link:label>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_PlanNameDomain" xlink:to="us-gaap_PlanNameDomain-label" xlink:type="arc"/>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_EmployeeServiceShareBasedCompensationNonvestedAwardsTotalCompensationCostNotYetRecognizedStockOptions" xlink:label="us-gaap_EmployeeServiceShareBasedCompensationNonvestedAwardsTotalCompensationCostNotYetRecognizedStockOptions" xlink:type="locator"/>
    <link:label xlink:label="us-gaap_EmployeeServiceShareBasedCompensationNonvestedAwardsTotalCompensationCostNotYetRecognizedStockOptions-label" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">us-gaap_EmployeeServiceShareBasedCompensationNonvestedAwardsTotalCompensationCostNotYetRecognizedStockOptions</link:label>
    <link:label xlink:label="us-gaap_EmployeeServiceShareBasedCompensationNonvestedAwardsTotalCompensationCostNotYetRecognizedStockOptions-label" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Employee Service Share-based Compensation, Nonvested Awards, Compensation Not yet Recognized, Stock Options</link:label>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_EmployeeServiceShareBasedCompensationNonvestedAwardsTotalCompensationCostNotYetRecognizedStockOptions" xlink:to="us-gaap_EmployeeServiceShareBasedCompensationNonvestedAwardsTotalCompensationCostNotYetRecognizedStockOptions-label" xlink:type="arc"/>
    <link:loc xlink:href="aipt-20180630.xsd#aipt_The2016RegisteredDirectOfferingMember" xlink:label="aipt_The2016RegisteredDirectOfferingMember" xlink:type="locator"/>
    <link:label xlink:label="aipt_The2016RegisteredDirectOfferingMember-label" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">The 2016 Registered Direct Offering [Member]</link:label>
    <link:label xlink:label="aipt_The2016RegisteredDirectOfferingMember-label" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">Represents information about the 2016 registered direct offering.</link:label>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="aipt_The2016RegisteredDirectOfferingMember" xlink:to="aipt_The2016RegisteredDirectOfferingMember-label" xlink:type="arc"/>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_EmployeeServiceShareBasedCompensationNonvestedAwardsTotalCompensationCostNotYetRecognizedPeriodForRecognition1" xlink:label="us-gaap_EmployeeServiceShareBasedCompensationNonvestedAwardsTotalCompensationCostNotYetRecognizedPeriodForRecognition1" xlink:type="locator"/>
    <link:label xlink:label="us-gaap_EmployeeServiceShareBasedCompensationNonvestedAwardsTotalCompensationCostNotYetRecognizedPeriodForRecognition1-label" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">us-gaap_EmployeeServiceShareBasedCompensationNonvestedAwardsTotalCompensationCostNotYetRecognizedPeriodForRecognition1</link:label>
    <link:label xlink:label="us-gaap_EmployeeServiceShareBasedCompensationNonvestedAwardsTotalCompensationCostNotYetRecognizedPeriodForRecognition1-label" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Employee Service Share-based Compensation, Nonvested Awards, Compensation Cost Not yet Recognized, Period for Recognition</link:label>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_EmployeeServiceShareBasedCompensationNonvestedAwardsTotalCompensationCostNotYetRecognizedPeriodForRecognition1" xlink:to="us-gaap_EmployeeServiceShareBasedCompensationNonvestedAwardsTotalCompensationCostNotYetRecognizedPeriodForRecognition1-label" xlink:type="arc"/>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_NetIncomeLossAvailableToCommonStockholdersBasic" xlink:label="us-gaap_NetIncomeLossAvailableToCommonStockholdersBasic" xlink:type="locator"/>
    <link:label xlink:label="us-gaap_NetIncomeLossAvailableToCommonStockholdersBasic-label" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:type="resource" xml:lang="en-US">Net loss available in basic and diluted calculation</link:label>
    <link:label xlink:label="us-gaap_NetIncomeLossAvailableToCommonStockholdersBasic-label" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Net loss</link:label>
    <link:label xlink:label="us-gaap_NetIncomeLossAvailableToCommonStockholdersBasic-label" xlink:role="http://www.xbrl.org/2003/role/totalLabel" xlink:type="resource" xml:lang="en-US">Net loss available to common shareholders</link:label>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_NetIncomeLossAvailableToCommonStockholdersBasic" xlink:to="us-gaap_NetIncomeLossAvailableToCommonStockholdersBasic-label" xlink:type="arc"/>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_EquityInterestIssuedOrIssuableByTypeAxis" xlink:label="us-gaap_EquityInterestIssuedOrIssuableByTypeAxis" xlink:type="locator"/>
    <link:label xlink:label="us-gaap_EquityInterestIssuedOrIssuableByTypeAxis-label" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Equity Interest Type [Axis]</link:label>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_EquityInterestIssuedOrIssuableByTypeAxis" xlink:to="us-gaap_EquityInterestIssuedOrIssuableByTypeAxis-label" xlink:type="arc"/>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_EquityInterestIssuedOrIssuableTypeDomain" xlink:label="us-gaap_EquityInterestIssuedOrIssuableTypeDomain" xlink:type="locator"/>
    <link:label xlink:label="us-gaap_EquityInterestIssuedOrIssuableTypeDomain-label" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Equity Interest Issued or Issuable, Type [Domain]</link:label>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_EquityInterestIssuedOrIssuableTypeDomain" xlink:to="us-gaap_EquityInterestIssuedOrIssuableTypeDomain-label" xlink:type="arc"/>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_ShareBasedCompensationArrangementsByShareBasedPaymentAwardAwardTypeAndPlanNameDomain" xlink:label="us-gaap_ShareBasedCompensationArrangementsByShareBasedPaymentAwardAwardTypeAndPlanNameDomain" xlink:type="locator"/>
    <link:label xlink:label="us-gaap_ShareBasedCompensationArrangementsByShareBasedPaymentAwardAwardTypeAndPlanNameDomain-label" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Equity Award [Domain]</link:label>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_ShareBasedCompensationArrangementsByShareBasedPaymentAwardAwardTypeAndPlanNameDomain" xlink:to="us-gaap_ShareBasedCompensationArrangementsByShareBasedPaymentAwardAwardTypeAndPlanNameDomain-label" xlink:type="arc"/>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_AwardDateAxis" xlink:label="us-gaap_AwardDateAxis" xlink:type="locator"/>
    <link:label xlink:label="us-gaap_AwardDateAxis-label" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Award Date [Axis]</link:label>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_AwardDateAxis" xlink:to="us-gaap_AwardDateAxis-label" xlink:type="arc"/>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_AwardDateDomain" xlink:label="us-gaap_AwardDateDomain" xlink:type="locator"/>
    <link:label xlink:label="us-gaap_AwardDateDomain-label" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Award Date [Domain]</link:label>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_AwardDateDomain" xlink:to="us-gaap_AwardDateDomain-label" xlink:type="arc"/>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_AwardTypeAxis" xlink:label="us-gaap_AwardTypeAxis" xlink:type="locator"/>
    <link:label xlink:label="us-gaap_AwardTypeAxis-label" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Award Type [Axis]</link:label>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_AwardTypeAxis" xlink:to="us-gaap_AwardTypeAxis-label" xlink:type="arc"/>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_IntangibleAssetsNetExcludingGoodwill" xlink:label="us-gaap_IntangibleAssetsNetExcludingGoodwill" xlink:type="locator"/>
    <link:label xlink:label="us-gaap_IntangibleAssetsNetExcludingGoodwill-label" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Intangibles, net</link:label>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_IntangibleAssetsNetExcludingGoodwill" xlink:to="us-gaap_IntangibleAssetsNetExcludingGoodwill-label" xlink:type="arc"/>
    <link:loc xlink:href="aipt-20180630.xsd#aipt_The2017PublicOfferingMember" xlink:label="aipt_The2017PublicOfferingMember" xlink:type="locator"/>
    <link:label xlink:label="aipt_The2017PublicOfferingMember-label" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">The 2017 Public Offering [Member]</link:label>
    <link:label xlink:label="aipt_The2017PublicOfferingMember-label" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">Represents information about the 2017 public offering.</link:label>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="aipt_The2017PublicOfferingMember" xlink:to="aipt_The2017PublicOfferingMember-label" xlink:type="arc"/>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_RestrictedStockUnitsRSUMember" xlink:label="us-gaap_RestrictedStockUnitsRSUMember" xlink:type="locator"/>
    <link:label xlink:label="us-gaap_RestrictedStockUnitsRSUMember-label" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Restricted Stock Units (RSUs) [Member]</link:label>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_RestrictedStockUnitsRSUMember" xlink:to="us-gaap_RestrictedStockUnitsRSUMember-label" xlink:type="arc"/>
    <link:loc xlink:href="aipt-20180630.xsd#aipt_SaleOfStockUnderwriterOptionTerm" xlink:label="aipt_SaleOfStockUnderwriterOptionTerm" xlink:type="locator"/>
    <link:label xlink:label="aipt_SaleOfStockUnderwriterOptionTerm-label" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">aipt_SaleOfStockUnderwriterOptionTerm</link:label>
    <link:label xlink:label="aipt_SaleOfStockUnderwriterOptionTerm-label" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Sale of Stock, Underwriter Option Term</link:label>
    <link:label xlink:label="aipt_SaleOfStockUnderwriterOptionTerm-label" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">Represents information about term of underwriter option.</link:label>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="aipt_SaleOfStockUnderwriterOptionTerm" xlink:to="aipt_SaleOfStockUnderwriterOptionTerm-label" xlink:type="arc"/>
    <link:loc xlink:href="aipt-20180630.xsd#aipt_SeriesDWarrantsMember" xlink:label="aipt_SeriesDWarrantsMember" xlink:type="locator"/>
    <link:label xlink:label="aipt_SeriesDWarrantsMember-label" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Series D Warrants [Member]</link:label>
    <link:label xlink:label="aipt_SeriesDWarrantsMember-label" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">Represents information about series D warrants.</link:label>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="aipt_SeriesDWarrantsMember" xlink:to="aipt_SeriesDWarrantsMember-label" xlink:type="arc"/>
    <link:loc xlink:href="aipt-20180630.xsd#aipt_SaleOfStockUnderwriterOptionNumberOfSecuritiesCalledByMaximumAdditionalWarrantsAvailableForPurchase" xlink:label="aipt_SaleOfStockUnderwriterOptionNumberOfSecuritiesCalledByMaximumAdditionalWarrantsAvailableForPurchase" xlink:type="locator"/>
    <link:label xlink:label="aipt_SaleOfStockUnderwriterOptionNumberOfSecuritiesCalledByMaximumAdditionalWarrantsAvailableForPurchase-label" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">aipt_SaleOfStockUnderwriterOptionNumberOfSecuritiesCalledByMaximumAdditionalWarrantsAvailableForPurchase</link:label>
    <link:label xlink:label="aipt_SaleOfStockUnderwriterOptionNumberOfSecuritiesCalledByMaximumAdditionalWarrantsAvailableForPurchase-label" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Sale of Stock, Underwriter Option, Number of Securities Called by Maximum Additional Warrants Available for Purchase</link:label>
    <link:label xlink:label="aipt_SaleOfStockUnderwriterOptionNumberOfSecuritiesCalledByMaximumAdditionalWarrantsAvailableForPurchase-label" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">Represents mumber of securities called by maximum additional warrants available for purchase under underwriter option.</link:label>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="aipt_SaleOfStockUnderwriterOptionNumberOfSecuritiesCalledByMaximumAdditionalWarrantsAvailableForPurchase" xlink:to="aipt_SaleOfStockUnderwriterOptionNumberOfSecuritiesCalledByMaximumAdditionalWarrantsAvailableForPurchase-label" xlink:type="arc"/>
    <link:loc xlink:href="aipt-20180630.xsd#aipt_SaleOfStockUnderwriterOptionExercisePriceOfAdditionalWarrantsAvailableForPurchase" xlink:label="aipt_SaleOfStockUnderwriterOptionExercisePriceOfAdditionalWarrantsAvailableForPurchase" xlink:type="locator"/>
    <link:label xlink:label="aipt_SaleOfStockUnderwriterOptionExercisePriceOfAdditionalWarrantsAvailableForPurchase-label" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">aipt_SaleOfStockUnderwriterOptionExercisePriceOfAdditionalWarrantsAvailableForPurchase</link:label>
    <link:label xlink:label="aipt_SaleOfStockUnderwriterOptionExercisePriceOfAdditionalWarrantsAvailableForPurchase-label" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Sale of Stock, Underwriter Option, Exercise Price of Additional Warrants Available for Purchase</link:label>
    <link:label xlink:label="aipt_SaleOfStockUnderwriterOptionExercisePriceOfAdditionalWarrantsAvailableForPurchase-label" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">Represents the exercise price of additional warrants available for purchase.</link:label>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="aipt_SaleOfStockUnderwriterOptionExercisePriceOfAdditionalWarrantsAvailableForPurchase" xlink:to="aipt_SaleOfStockUnderwriterOptionExercisePriceOfAdditionalWarrantsAvailableForPurchase-label" xlink:type="arc"/>
    <link:loc xlink:href="aipt-20180630.xsd#aipt_SaleOfStockUnderwriterOptionMaximumAdditionalSharesOfCommonStockAvailableForPurchase" xlink:label="aipt_SaleOfStockUnderwriterOptionMaximumAdditionalSharesOfCommonStockAvailableForPurchase" xlink:type="locator"/>
    <link:label xlink:label="aipt_SaleOfStockUnderwriterOptionMaximumAdditionalSharesOfCommonStockAvailableForPurchase-label" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">aipt_SaleOfStockUnderwriterOptionMaximumAdditionalSharesOfCommonStockAvailableForPurchase</link:label>
    <link:label xlink:label="aipt_SaleOfStockUnderwriterOptionMaximumAdditionalSharesOfCommonStockAvailableForPurchase-label" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Sale of Stock, Underwriter Option, Maximum Additional Shares of Common Stock Available for Purchase</link:label>
    <link:label xlink:label="aipt_SaleOfStockUnderwriterOptionMaximumAdditionalSharesOfCommonStockAvailableForPurchase-label" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">Represents additional shares of common stock available for purchase under underwriter option.</link:label>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="aipt_SaleOfStockUnderwriterOptionMaximumAdditionalSharesOfCommonStockAvailableForPurchase" xlink:to="aipt_SaleOfStockUnderwriterOptionMaximumAdditionalSharesOfCommonStockAvailableForPurchase-label" xlink:type="arc"/>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_EmployeeStockOptionMember" xlink:label="us-gaap_EmployeeStockOptionMember" xlink:type="locator"/>
    <link:label xlink:label="us-gaap_EmployeeStockOptionMember-label" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Employee Stock Option [Member]</link:label>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_EmployeeStockOptionMember" xlink:to="us-gaap_EmployeeStockOptionMember-label" xlink:type="arc"/>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_WarrantMember" xlink:label="us-gaap_WarrantMember" xlink:type="locator"/>
    <link:label xlink:label="us-gaap_WarrantMember-label" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Warrant [Member]</link:label>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_WarrantMember" xlink:to="us-gaap_WarrantMember-label" xlink:type="arc"/>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareByAntidilutiveSecuritiesAxis" xlink:label="us-gaap_AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareByAntidilutiveSecuritiesAxis" xlink:type="locator"/>
    <link:label xlink:label="us-gaap_AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareByAntidilutiveSecuritiesAxis-label" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Antidilutive Securities [Axis]</link:label>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareByAntidilutiveSecuritiesAxis" xlink:to="us-gaap_AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareByAntidilutiveSecuritiesAxis-label" xlink:type="arc"/>
    <link:loc xlink:href="aipt-20180630.xsd#aipt_ClassOfWarrantOrRightIssuedPerUnit" xlink:label="aipt_ClassOfWarrantOrRightIssuedPerUnit" xlink:type="locator"/>
    <link:label xlink:label="aipt_ClassOfWarrantOrRightIssuedPerUnit-label" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">aipt_ClassOfWarrantOrRightIssuedPerUnit</link:label>
    <link:label xlink:label="aipt_ClassOfWarrantOrRightIssuedPerUnit-label" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Class of Warrant or Right, Issued per Unit</link:label>
    <link:label xlink:label="aipt_ClassOfWarrantOrRightIssuedPerUnit-label" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">Represents warrants issued per unit.</link:label>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="aipt_ClassOfWarrantOrRightIssuedPerUnit" xlink:to="aipt_ClassOfWarrantOrRightIssuedPerUnit-label" xlink:type="arc"/>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_AntidilutiveSecuritiesNameDomain" xlink:label="us-gaap_AntidilutiveSecuritiesNameDomain" xlink:type="locator"/>
    <link:label xlink:label="us-gaap_AntidilutiveSecuritiesNameDomain-label" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Antidilutive Securities, Name [Domain]</link:label>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_AntidilutiveSecuritiesNameDomain" xlink:to="us-gaap_AntidilutiveSecuritiesNameDomain-label" xlink:type="arc"/>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_FinancingReceivablesTextBlock" xlink:label="us-gaap_FinancingReceivablesTextBlock" xlink:type="locator"/>
    <link:label xlink:label="us-gaap_FinancingReceivablesTextBlock-label" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Financing Receivables [Text Block]</link:label>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_FinancingReceivablesTextBlock" xlink:to="us-gaap_FinancingReceivablesTextBlock-label" xlink:type="arc"/>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_AccumulatedDepreciationDepletionAndAmortizationPropertyPlantAndEquipment" xlink:label="us-gaap_AccumulatedDepreciationDepletionAndAmortizationPropertyPlantAndEquipment" xlink:type="locator"/>
    <link:label xlink:label="us-gaap_AccumulatedDepreciationDepletionAndAmortizationPropertyPlantAndEquipment-label" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:type="resource" xml:lang="en-US">Less: Accumulated depreciation</link:label>
    <link:label xlink:label="us-gaap_AccumulatedDepreciationDepletionAndAmortizationPropertyPlantAndEquipment-label" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">us-gaap_AccumulatedDepreciationDepletionAndAmortizationPropertyPlantAndEquipment</link:label>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_AccumulatedDepreciationDepletionAndAmortizationPropertyPlantAndEquipment" xlink:to="us-gaap_AccumulatedDepreciationDepletionAndAmortizationPropertyPlantAndEquipment-label" xlink:type="arc"/>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_PropertyPlantAndEquipmentNet" xlink:label="us-gaap_PropertyPlantAndEquipmentNet" xlink:type="locator"/>
    <link:label xlink:label="us-gaap_PropertyPlantAndEquipmentNet-label" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">us-gaap_PropertyPlantAndEquipmentNet</link:label>
    <link:label xlink:label="us-gaap_PropertyPlantAndEquipmentNet-label" xlink:role="http://www.xbrl.org/2003/role/totalLabel" xlink:type="resource" xml:lang="en-US">Total Fixed Assets, Net</link:label>
    <link:label xlink:label="us-gaap_PropertyPlantAndEquipmentNet-label" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Fixed Assets, net</link:label>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_PropertyPlantAndEquipmentNet" xlink:to="us-gaap_PropertyPlantAndEquipmentNet-label" xlink:type="arc"/>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_PropertyPlantAndEquipmentGross" xlink:label="us-gaap_PropertyPlantAndEquipmentGross" xlink:type="locator"/>
    <link:label xlink:label="us-gaap_PropertyPlantAndEquipmentGross-label" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:type="resource" xml:lang="en-US">Property, Plant, and Equipment Gross</link:label>
    <link:label xlink:label="us-gaap_PropertyPlantAndEquipmentGross-label" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">us-gaap_PropertyPlantAndEquipmentGross</link:label>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_PropertyPlantAndEquipmentGross" xlink:to="us-gaap_PropertyPlantAndEquipmentGross-label" xlink:type="arc"/>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_EquityMethodInvestmentOwnershipPercentage" xlink:label="us-gaap_EquityMethodInvestmentOwnershipPercentage" xlink:type="locator"/>
    <link:label xlink:label="us-gaap_EquityMethodInvestmentOwnershipPercentage-label" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">us-gaap_EquityMethodInvestmentOwnershipPercentage</link:label>
    <link:label xlink:label="us-gaap_EquityMethodInvestmentOwnershipPercentage-label" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Equity Method Investment, Ownership Percentage</link:label>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_EquityMethodInvestmentOwnershipPercentage" xlink:to="us-gaap_EquityMethodInvestmentOwnershipPercentage-label" xlink:type="arc"/>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_LeasesOfLesseeDisclosureTextBlock" xlink:label="us-gaap_LeasesOfLesseeDisclosureTextBlock" xlink:type="locator"/>
    <link:label xlink:label="us-gaap_LeasesOfLesseeDisclosureTextBlock-label" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Leases of Lessee Disclosure [Text Block]</link:label>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_LeasesOfLesseeDisclosureTextBlock" xlink:to="us-gaap_LeasesOfLesseeDisclosureTextBlock-label" xlink:type="arc"/>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_NetCashProvidedByUsedInInvestingActivitiesAbstract" xlink:label="us-gaap_NetCashProvidedByUsedInInvestingActivitiesAbstract" xlink:type="locator"/>
    <link:label xlink:label="us-gaap_NetCashProvidedByUsedInInvestingActivitiesAbstract-label" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Cash flow from investing activities:</link:label>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_NetCashProvidedByUsedInInvestingActivitiesAbstract" xlink:to="us-gaap_NetCashProvidedByUsedInInvestingActivitiesAbstract-label" xlink:type="arc"/>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_EarningsPerShareTextBlock" xlink:label="us-gaap_EarningsPerShareTextBlock" xlink:type="locator"/>
    <link:label xlink:label="us-gaap_EarningsPerShareTextBlock-label" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Earnings Per Share [Text Block]</link:label>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_EarningsPerShareTextBlock" xlink:to="us-gaap_EarningsPerShareTextBlock-label" xlink:type="arc"/>
    <link:loc xlink:href="aipt-20180630.xsd#aipt_ClassOfWarrantOrRightVestingPeriod" xlink:label="aipt_ClassOfWarrantOrRightVestingPeriod" xlink:type="locator"/>
    <link:label xlink:label="aipt_ClassOfWarrantOrRightVestingPeriod-label" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">aipt_ClassOfWarrantOrRightVestingPeriod</link:label>
    <link:label xlink:label="aipt_ClassOfWarrantOrRightVestingPeriod-label" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Class of Warrant or Right, Vesting Period</link:label>
    <link:label xlink:label="aipt_ClassOfWarrantOrRightVestingPeriod-label" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">The period in which a warrant vests.</link:label>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="aipt_ClassOfWarrantOrRightVestingPeriod" xlink:to="aipt_ClassOfWarrantOrRightVestingPeriod-label" xlink:type="arc"/>
    <link:loc xlink:href="aipt-20180630.xsd#aipt_ProceedsFromIssuanceOrSaleOfEquityNetOfStockIssuanceCosts" xlink:label="aipt_ProceedsFromIssuanceOrSaleOfEquityNetOfStockIssuanceCosts" xlink:type="locator"/>
    <link:label xlink:label="aipt_ProceedsFromIssuanceOrSaleOfEquityNetOfStockIssuanceCosts-label" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">aipt_ProceedsFromIssuanceOrSaleOfEquityNetOfStockIssuanceCosts</link:label>
    <link:label xlink:label="aipt_ProceedsFromIssuanceOrSaleOfEquityNetOfStockIssuanceCosts-label" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Proceeds from Issuance or Sale of Equity, Net of Stock Issuance Costs</link:label>
    <link:label xlink:label="aipt_ProceedsFromIssuanceOrSaleOfEquityNetOfStockIssuanceCosts-label" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">The cash inflow from the issuance of common stock, preferred stock, treasury stock, stock options, warrants and other types of equity, net of issuance costs.</link:label>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="aipt_ProceedsFromIssuanceOrSaleOfEquityNetOfStockIssuanceCosts" xlink:to="aipt_ProceedsFromIssuanceOrSaleOfEquityNetOfStockIssuanceCosts-label" xlink:type="arc"/>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_IncomeLossFromEquityMethodInvestments" xlink:label="us-gaap_IncomeLossFromEquityMethodInvestments" xlink:type="locator"/>
    <link:label xlink:label="us-gaap_IncomeLossFromEquityMethodInvestments-label" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Loss on equity method investment</link:label>
    <link:label xlink:label="us-gaap_IncomeLossFromEquityMethodInvestments-label" xlink:role="http://www.xbrl.org/2009/role/negatedLabel" xlink:type="resource" xml:lang="en-US">Loss on equity method investment</link:label>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_IncomeLossFromEquityMethodInvestments" xlink:to="us-gaap_IncomeLossFromEquityMethodInvestments-label" xlink:type="arc"/>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_EquityMethodInvestments" xlink:label="us-gaap_EquityMethodInvestments" xlink:type="locator"/>
    <link:label xlink:label="us-gaap_EquityMethodInvestments-label" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Equity Method Investment (Note 2)</link:label>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_EquityMethodInvestments" xlink:to="us-gaap_EquityMethodInvestments-label" xlink:type="arc"/>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_RelatedPartyTransactionsDisclosureTextBlock" xlink:label="us-gaap_RelatedPartyTransactionsDisclosureTextBlock" xlink:type="locator"/>
    <link:label xlink:label="us-gaap_RelatedPartyTransactionsDisclosureTextBlock-label" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Related Party Transactions Disclosure [Text Block]</link:label>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_RelatedPartyTransactionsDisclosureTextBlock" xlink:to="us-gaap_RelatedPartyTransactionsDisclosureTextBlock-label" xlink:type="arc"/>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_IncomeTaxExpenseBenefit" xlink:label="us-gaap_IncomeTaxExpenseBenefit" xlink:type="locator"/>
    <link:label xlink:label="us-gaap_IncomeTaxExpenseBenefit-label" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">us-gaap_IncomeTaxExpenseBenefit</link:label>
    <link:label xlink:label="us-gaap_IncomeTaxExpenseBenefit-label" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Income Tax Expense (Benefit), Total</link:label>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_IncomeTaxExpenseBenefit" xlink:to="us-gaap_IncomeTaxExpenseBenefit-label" xlink:type="arc"/>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_IncreaseDecreaseInAccruedLiabilities" xlink:label="us-gaap_IncreaseDecreaseInAccruedLiabilities" xlink:type="locator"/>
    <link:label xlink:label="us-gaap_IncreaseDecreaseInAccruedLiabilities-label" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Accrued expenses</link:label>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_IncreaseDecreaseInAccruedLiabilities" xlink:to="us-gaap_IncreaseDecreaseInAccruedLiabilities-label" xlink:type="arc"/>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_ShortTermDebtTypeAxis" xlink:label="us-gaap_ShortTermDebtTypeAxis" xlink:type="locator"/>
    <link:label xlink:label="us-gaap_ShortTermDebtTypeAxis-label" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Short-term Debt, Type [Axis]</link:label>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_ShortTermDebtTypeAxis" xlink:to="us-gaap_ShortTermDebtTypeAxis-label" xlink:type="arc"/>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_ShortTermDebtTypeDomain" xlink:label="us-gaap_ShortTermDebtTypeDomain" xlink:type="locator"/>
    <link:label xlink:label="us-gaap_ShortTermDebtTypeDomain-label" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Short-term Debt, Type [Domain]</link:label>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_ShortTermDebtTypeDomain" xlink:to="us-gaap_ShortTermDebtTypeDomain-label" xlink:type="arc"/>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_IncreaseDecreaseInAccountsPayable" xlink:label="us-gaap_IncreaseDecreaseInAccountsPayable" xlink:type="locator"/>
    <link:label xlink:label="us-gaap_IncreaseDecreaseInAccountsPayable-label" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Accounts payable</link:label>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_IncreaseDecreaseInAccountsPayable" xlink:to="us-gaap_IncreaseDecreaseInAccountsPayable-label" xlink:type="arc"/>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_DefinedContributionPlanEmployerDiscretionaryContributionAmount" xlink:label="us-gaap_DefinedContributionPlanEmployerDiscretionaryContributionAmount" xlink:type="locator"/>
    <link:label xlink:label="us-gaap_DefinedContributionPlanEmployerDiscretionaryContributionAmount-label" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">us-gaap_DefinedContributionPlanEmployerDiscretionaryContributionAmount</link:label>
    <link:label xlink:label="us-gaap_DefinedContributionPlanEmployerDiscretionaryContributionAmount-label" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Defined Contribution Plan, Employer Discretionary Contribution Amount</link:label>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_DefinedContributionPlanEmployerDiscretionaryContributionAmount" xlink:to="us-gaap_DefinedContributionPlanEmployerDiscretionaryContributionAmount-label" xlink:type="arc"/>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_GeneralAndAdministrativeExpense" xlink:label="us-gaap_GeneralAndAdministrativeExpense" xlink:type="locator"/>
    <link:label xlink:label="us-gaap_GeneralAndAdministrativeExpense-label" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">General and administrative expense</link:label>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_GeneralAndAdministrativeExpense" xlink:to="us-gaap_GeneralAndAdministrativeExpense-label" xlink:type="arc"/>
    <link:loc xlink:href="aipt-20180630.xsd#aipt_PropertyPlantAndEquipmentUsefulLifeTableTextBlock" xlink:label="aipt_PropertyPlantAndEquipmentUsefulLifeTableTextBlock" xlink:type="locator"/>
    <link:label xlink:label="aipt_PropertyPlantAndEquipmentUsefulLifeTableTextBlock-label" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Property Plant and Equipment Useful Life [Table Text Block]</link:label>
    <link:label xlink:label="aipt_PropertyPlantAndEquipmentUsefulLifeTableTextBlock-label" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">Represents the schedule of property, plant and equipment useful life.</link:label>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="aipt_PropertyPlantAndEquipmentUsefulLifeTableTextBlock" xlink:to="aipt_PropertyPlantAndEquipmentUsefulLifeTableTextBlock-label" xlink:type="arc"/>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_DefinedContributionPlanMaximumAnnualContributionsPerEmployeePercent" xlink:label="us-gaap_DefinedContributionPlanMaximumAnnualContributionsPerEmployeePercent" xlink:type="locator"/>
    <link:label xlink:label="us-gaap_DefinedContributionPlanMaximumAnnualContributionsPerEmployeePercent-label" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">us-gaap_DefinedContributionPlanMaximumAnnualContributionsPerEmployeePercent</link:label>
    <link:label xlink:label="us-gaap_DefinedContributionPlanMaximumAnnualContributionsPerEmployeePercent-label" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Defined Contribution Plan, Maximum Annual Contributions Per Employee, Percent</link:label>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_DefinedContributionPlanMaximumAnnualContributionsPerEmployeePercent" xlink:to="us-gaap_DefinedContributionPlanMaximumAnnualContributionsPerEmployeePercent-label" xlink:type="arc"/>
    <link:loc xlink:href="aipt-20180630.xsd#aipt_DemoEquipmentMember" xlink:label="aipt_DemoEquipmentMember" xlink:type="locator"/>
    <link:label xlink:label="aipt_DemoEquipmentMember-label" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Demo Equipment [Member]</link:label>
    <link:label xlink:label="aipt_DemoEquipmentMember-label" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">Tangible personal property used in the demo process.</link:label>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="aipt_DemoEquipmentMember" xlink:to="aipt_DemoEquipmentMember-label" xlink:type="arc"/>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_DefinedContributionPlanEmployerMatchingContributionPercentOfMatch" xlink:label="us-gaap_DefinedContributionPlanEmployerMatchingContributionPercentOfMatch" xlink:type="locator"/>
    <link:label xlink:label="us-gaap_DefinedContributionPlanEmployerMatchingContributionPercentOfMatch-label" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">us-gaap_DefinedContributionPlanEmployerMatchingContributionPercentOfMatch</link:label>
    <link:label xlink:label="us-gaap_DefinedContributionPlanEmployerMatchingContributionPercentOfMatch-label" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Defined Contribution Plan, Employer Matching Contribution, Percent of Match</link:label>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_DefinedContributionPlanEmployerMatchingContributionPercentOfMatch" xlink:to="us-gaap_DefinedContributionPlanEmployerMatchingContributionPercentOfMatch-label" xlink:type="arc"/>
    <link:loc xlink:href="aipt-20180630.xsd#aipt_ManufacturingToolingMember" xlink:label="aipt_ManufacturingToolingMember" xlink:type="locator"/>
    <link:label xlink:label="aipt_ManufacturingToolingMember-label" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Manufacturing Tooling [Member]</link:label>
    <link:label xlink:label="aipt_ManufacturingToolingMember-label" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">Tools commonly used in the manufacturing of goods.</link:label>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="aipt_ManufacturingToolingMember" xlink:to="aipt_ManufacturingToolingMember-label" xlink:type="arc"/>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_LeaseAndRentalExpense" xlink:label="us-gaap_LeaseAndRentalExpense" xlink:type="locator"/>
    <link:label xlink:label="us-gaap_LeaseAndRentalExpense-label" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">us-gaap_LeaseAndRentalExpense</link:label>
    <link:label xlink:label="us-gaap_LeaseAndRentalExpense-label" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Operating Leases, Rent Expense, Total</link:label>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_LeaseAndRentalExpense" xlink:to="us-gaap_LeaseAndRentalExpense-label" xlink:type="arc"/>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_CashAndCashEquivalentsAtCarryingValue" xlink:label="us-gaap_CashAndCashEquivalentsAtCarryingValue" xlink:type="locator"/>
    <link:label xlink:label="us-gaap_CashAndCashEquivalentsAtCarryingValue-label" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Cash &amp; cash equivalents</link:label>
    <link:label xlink:label="us-gaap_CashAndCashEquivalentsAtCarryingValue-label" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Cash and Cash Equivalents, at Carrying Value, Ending Balance</link:label>
    <link:label xlink:label="us-gaap_CashAndCashEquivalentsAtCarryingValue-label" xlink:role="http://www.xbrl.org/2003/role/periodStartLabel" xlink:type="resource" xml:lang="en-US">Cash at beginning of period</link:label>
    <link:label xlink:label="us-gaap_CashAndCashEquivalentsAtCarryingValue-label" xlink:role="http://www.xbrl.org/2003/role/periodEndLabel" xlink:type="resource" xml:lang="en-US">Cash at end of period</link:label>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_CashAndCashEquivalentsAtCarryingValue" xlink:to="us-gaap_CashAndCashEquivalentsAtCarryingValue-label" xlink:type="arc"/>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_DebtInstrumentIncreaseDecreaseForPeriodNet" xlink:label="us-gaap_DebtInstrumentIncreaseDecreaseForPeriodNet" xlink:type="locator"/>
    <link:label xlink:label="us-gaap_DebtInstrumentIncreaseDecreaseForPeriodNet-label" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">us-gaap_DebtInstrumentIncreaseDecreaseForPeriodNet</link:label>
    <link:label xlink:label="us-gaap_DebtInstrumentIncreaseDecreaseForPeriodNet-label" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Debt Instrument, Increase (Decrease), Net, Total</link:label>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_DebtInstrumentIncreaseDecreaseForPeriodNet" xlink:to="us-gaap_DebtInstrumentIncreaseDecreaseForPeriodNet-label" xlink:type="arc"/>
    <link:loc xlink:href="aipt-20180630.xsd#aipt_SharebasedCompensationArrangementBySharebasedPaymentAwardEquityInstrumentsOtherThanOptionsExercisedWeightedAverageGrantDateFairValue" xlink:label="aipt_SharebasedCompensationArrangementBySharebasedPaymentAwardEquityInstrumentsOtherThanOptionsExercisedWeightedAverageGrantDateFairValue" xlink:type="locator"/>
    <link:label xlink:label="aipt_SharebasedCompensationArrangementBySharebasedPaymentAwardEquityInstrumentsOtherThanOptionsExercisedWeightedAverageGrantDateFairValue-label" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Average Exercise Price Exercised (in dollars per share)</link:label>
    <link:label xlink:label="aipt_SharebasedCompensationArrangementBySharebasedPaymentAwardEquityInstrumentsOtherThanOptionsExercisedWeightedAverageGrantDateFairValue-label" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Average Exercise Price Exercised (in dollars per share)</link:label>
    <link:label xlink:label="aipt_SharebasedCompensationArrangementBySharebasedPaymentAwardEquityInstrumentsOtherThanOptionsExercisedWeightedAverageGrantDateFairValue-label" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">Weighted average fair value as of the grant date of equity-based award plans other than stock (unit) option plans that were exercised during the current period.</link:label>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="aipt_SharebasedCompensationArrangementBySharebasedPaymentAwardEquityInstrumentsOtherThanOptionsExercisedWeightedAverageGrantDateFairValue" xlink:to="aipt_SharebasedCompensationArrangementBySharebasedPaymentAwardEquityInstrumentsOtherThanOptionsExercisedWeightedAverageGrantDateFairValue-label" xlink:type="arc"/>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_AllocatedShareBasedCompensationExpense" xlink:label="us-gaap_AllocatedShareBasedCompensationExpense" xlink:type="locator"/>
    <link:label xlink:label="us-gaap_AllocatedShareBasedCompensationExpense-label" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">us-gaap_AllocatedShareBasedCompensationExpense</link:label>
    <link:label xlink:label="us-gaap_AllocatedShareBasedCompensationExpense-label" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Allocated Share-based Compensation Expense, Total</link:label>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_AllocatedShareBasedCompensationExpense" xlink:to="us-gaap_AllocatedShareBasedCompensationExpense-label" xlink:type="arc"/>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_CertificatesOfDepositAtCarryingValue" xlink:label="us-gaap_CertificatesOfDepositAtCarryingValue" xlink:type="locator"/>
    <link:label xlink:label="us-gaap_CertificatesOfDepositAtCarryingValue-label" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Certificates of deposit</link:label>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_CertificatesOfDepositAtCarryingValue" xlink:to="us-gaap_CertificatesOfDepositAtCarryingValue-label" xlink:type="arc"/>
    <link:loc xlink:href="https://xbrl.sec.gov/dei/2018/dei-2018-01-31.xsd#dei_AmendmentFlag" xlink:label="dei_AmendmentFlag" xlink:type="locator"/>
    <link:label xlink:label="dei_AmendmentFlag-label" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Amendment Flag</link:label>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="dei_AmendmentFlag" xlink:to="dei_AmendmentFlag-label" xlink:type="arc"/>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_ComprehensiveIncomeNetOfTaxAbstract" xlink:label="us-gaap_ComprehensiveIncomeNetOfTaxAbstract" xlink:type="locator"/>
    <link:label xlink:label="us-gaap_ComprehensiveIncomeNetOfTaxAbstract-label" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Other comprehensive income</link:label>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_ComprehensiveIncomeNetOfTaxAbstract" xlink:to="us-gaap_ComprehensiveIncomeNetOfTaxAbstract-label" xlink:type="arc"/>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_ComprehensiveIncomeNetOfTax" xlink:label="us-gaap_ComprehensiveIncomeNetOfTax" xlink:type="locator"/>
    <link:label xlink:label="us-gaap_ComprehensiveIncomeNetOfTax-label" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">us-gaap_ComprehensiveIncomeNetOfTax</link:label>
    <link:label xlink:label="us-gaap_ComprehensiveIncomeNetOfTax-label" xlink:role="http://www.xbrl.org/2003/role/totalLabel" xlink:type="resource" xml:lang="en-US">Comprehensive loss</link:label>
    <link:label xlink:label="us-gaap_ComprehensiveIncomeNetOfTax-label" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Comprehensive loss</link:label>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_ComprehensiveIncomeNetOfTax" xlink:to="us-gaap_ComprehensiveIncomeNetOfTax-label" xlink:type="arc"/>
    <link:loc xlink:href="aipt-20180630.xsd#aipt_SeriesCConvertiblePreferredStockMember" xlink:label="aipt_SeriesCConvertiblePreferredStockMember" xlink:type="locator"/>
    <link:label xlink:label="aipt_SeriesCConvertiblePreferredStockMember-label" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Series C Convertible Preferred Stock [Member]</link:label>
    <link:label xlink:label="aipt_SeriesCConvertiblePreferredStockMember-label" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">Outstanding nonredeemable series C preferred stock that is convertible and may be exchanged into common shares or other types of securities at the owner's option. Classified within stockholders' equity if nonredeemable or redeemable solely at the option of the issuer. Classified within temporary equity if redemption is outside the control of the issuer.</link:label>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="aipt_SeriesCConvertiblePreferredStockMember" xlink:to="aipt_SeriesCConvertiblePreferredStockMember-label" xlink:type="arc"/>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_UseOfEstimates" xlink:label="us-gaap_UseOfEstimates" xlink:type="locator"/>
    <link:label xlink:label="us-gaap_UseOfEstimates-label" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Use of Estimates, Policy [Policy Text Block]</link:label>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_UseOfEstimates" xlink:to="us-gaap_UseOfEstimates-label" xlink:type="arc"/>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_NewAccountingPronouncementsPolicyPolicyTextBlock" xlink:label="us-gaap_NewAccountingPronouncementsPolicyPolicyTextBlock" xlink:type="locator"/>
    <link:label xlink:label="us-gaap_NewAccountingPronouncementsPolicyPolicyTextBlock-label" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">New Accounting Pronouncements, Policy [Policy Text Block]</link:label>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_NewAccountingPronouncementsPolicyPolicyTextBlock" xlink:to="us-gaap_NewAccountingPronouncementsPolicyPolicyTextBlock-label" xlink:type="arc"/>
    <link:loc xlink:href="aipt-20180630.xsd#aipt_RelatedPartyTransactionMonthlyCashPayment" xlink:label="aipt_RelatedPartyTransactionMonthlyCashPayment" xlink:type="locator"/>
    <link:label xlink:label="aipt_RelatedPartyTransactionMonthlyCashPayment-label" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">aipt_RelatedPartyTransactionMonthlyCashPayment</link:label>
    <link:label xlink:label="aipt_RelatedPartyTransactionMonthlyCashPayment-label" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Related Party Transaction, Monthly Cash Payment</link:label>
    <link:label xlink:label="aipt_RelatedPartyTransactionMonthlyCashPayment-label" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">The amount of monthly cash payment made to a related party.</link:label>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="aipt_RelatedPartyTransactionMonthlyCashPayment" xlink:to="aipt_RelatedPartyTransactionMonthlyCashPayment-label" xlink:type="arc"/>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_GainLossOnSaleOfPropertyPlantEquipment" xlink:label="us-gaap_GainLossOnSaleOfPropertyPlantEquipment" xlink:type="locator"/>
    <link:label xlink:label="us-gaap_GainLossOnSaleOfPropertyPlantEquipment-label" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">us-gaap_GainLossOnSaleOfPropertyPlantEquipment</link:label>
    <link:label xlink:label="us-gaap_GainLossOnSaleOfPropertyPlantEquipment-label" xlink:role="http://www.xbrl.org/2009/role/negatedLabel" xlink:type="resource" xml:lang="en-US">(Gain) loss on Sales of Equipment</link:label>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_GainLossOnSaleOfPropertyPlantEquipment" xlink:to="us-gaap_GainLossOnSaleOfPropertyPlantEquipment-label" xlink:type="arc"/>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_SharesOutstanding" xlink:label="us-gaap_SharesOutstanding" xlink:type="locator"/>
    <link:label xlink:label="us-gaap_SharesOutstanding-label" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">us-gaap_SharesOutstanding</link:label>
    <link:label xlink:label="us-gaap_SharesOutstanding-label" xlink:role="http://www.xbrl.org/2003/role/periodStartLabel" xlink:type="resource" xml:lang="en-US">Balance (in shares)</link:label>
    <link:label xlink:label="us-gaap_SharesOutstanding-label" xlink:role="http://www.xbrl.org/2003/role/periodEndLabel" xlink:type="resource" xml:lang="en-US">Balance (in shares)</link:label>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_SharesOutstanding" xlink:to="us-gaap_SharesOutstanding-label" xlink:type="arc"/>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_CommonStockSharesOutstanding" xlink:label="us-gaap_CommonStockSharesOutstanding" xlink:type="locator"/>
    <link:label xlink:label="us-gaap_CommonStockSharesOutstanding-label" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Common stock, shares outstanding (in shares)</link:label>
    <link:label xlink:label="us-gaap_CommonStockSharesOutstanding-label" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Common Stock, Shares, Outstanding, Ending Balance</link:label>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_CommonStockSharesOutstanding" xlink:to="us-gaap_CommonStockSharesOutstanding-label" xlink:type="arc"/>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_PreferredStockSharesOutstanding" xlink:label="us-gaap_PreferredStockSharesOutstanding" xlink:type="locator"/>
    <link:label xlink:label="us-gaap_PreferredStockSharesOutstanding-label" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Preferred stock, shares outstanding (in shares)</link:label>
    <link:label xlink:label="us-gaap_PreferredStockSharesOutstanding-label" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Preferred Stock, Shares Outstanding, Ending Balance</link:label>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_PreferredStockSharesOutstanding" xlink:to="us-gaap_PreferredStockSharesOutstanding-label" xlink:type="arc"/>
    <link:loc xlink:href="aipt-20180630.xsd#aipt_StockOptionsThirtyoneMember" xlink:label="aipt_StockOptionsThirtyoneMember" xlink:type="locator"/>
    <link:label xlink:label="aipt_StockOptionsThirtyoneMember-label" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Stock Options Thirty-One [Member]</link:label>
    <link:label xlink:label="aipt_StockOptionsThirtyoneMember-label" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">Represents information pertaining to the 31st stock options.</link:label>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="aipt_StockOptionsThirtyoneMember" xlink:to="aipt_StockOptionsThirtyoneMember-label" xlink:type="arc"/>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_StockholdersEquityPeriodIncreaseDecrease" xlink:label="us-gaap_StockholdersEquityPeriodIncreaseDecrease" xlink:type="locator"/>
    <link:label xlink:label="us-gaap_StockholdersEquityPeriodIncreaseDecrease-label" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">us-gaap_StockholdersEquityPeriodIncreaseDecrease</link:label>
    <link:label xlink:label="us-gaap_StockholdersEquityPeriodIncreaseDecrease-label" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Stockholders' Equity, Period Increase (Decrease), Total</link:label>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_StockholdersEquityPeriodIncreaseDecrease" xlink:to="us-gaap_StockholdersEquityPeriodIncreaseDecrease-label" xlink:type="arc"/>
    <link:loc xlink:href="aipt-20180630.xsd#aipt_VicePresidentOfSalesAndMarketingMember" xlink:label="aipt_VicePresidentOfSalesAndMarketingMember" xlink:type="locator"/>
    <link:label xlink:label="aipt_VicePresidentOfSalesAndMarketingMember-label" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Vice President of Sales and Marketing [Member]</link:label>
    <link:label xlink:label="aipt_VicePresidentOfSalesAndMarketingMember-label" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">Represents the information pertaining to the vice president of sales and marketing.</link:label>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="aipt_VicePresidentOfSalesAndMarketingMember" xlink:to="aipt_VicePresidentOfSalesAndMarketingMember-label" xlink:type="arc"/>
    <link:loc xlink:href="https://xbrl.sec.gov/dei/2018/dei-2018-01-31.xsd#dei_CurrentFiscalYearEndDate" xlink:label="dei_CurrentFiscalYearEndDate" xlink:type="locator"/>
    <link:label xlink:label="dei_CurrentFiscalYearEndDate-label" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Current Fiscal Year End Date</link:label>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="dei_CurrentFiscalYearEndDate" xlink:to="dei_CurrentFiscalYearEndDate-label" xlink:type="arc"/>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_NotesReceivableNet" xlink:label="us-gaap_NotesReceivableNet" xlink:type="locator"/>
    <link:label xlink:label="us-gaap_NotesReceivableNet-label" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">us-gaap_NotesReceivableNet</link:label>
    <link:label xlink:label="us-gaap_NotesReceivableNet-label" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Financing Receivable, Net, Total</link:label>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_NotesReceivableNet" xlink:to="us-gaap_NotesReceivableNet-label" xlink:type="arc"/>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_LeaseArrangementTypeAxis" xlink:label="us-gaap_LeaseArrangementTypeAxis" xlink:type="locator"/>
    <link:label xlink:label="us-gaap_LeaseArrangementTypeAxis-label" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Lease Arrangement, Type [Axis]</link:label>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_LeaseArrangementTypeAxis" xlink:to="us-gaap_LeaseArrangementTypeAxis-label" xlink:type="arc"/>
    <link:loc xlink:href="aipt-20180630.xsd#aipt_StockOptionsThirtythreeMember" xlink:label="aipt_StockOptionsThirtythreeMember" xlink:type="locator"/>
    <link:label xlink:label="aipt_StockOptionsThirtythreeMember-label" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Stock Options Thirty-Three [Member]</link:label>
    <link:label xlink:label="aipt_StockOptionsThirtythreeMember-label" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">Represents information pertaining to the 33rd stock options.</link:label>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="aipt_StockOptionsThirtythreeMember" xlink:to="aipt_StockOptionsThirtythreeMember-label" xlink:type="arc"/>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_LeaseArrangementTypeDomain" xlink:label="us-gaap_LeaseArrangementTypeDomain" xlink:type="locator"/>
    <link:label xlink:label="us-gaap_LeaseArrangementTypeDomain-label" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Lease Arrangement, Type [Domain]</link:label>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_LeaseArrangementTypeDomain" xlink:to="us-gaap_LeaseArrangementTypeDomain-label" xlink:type="arc"/>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_IncreaseDecreaseInPrepaidDeferredExpenseAndOtherAssets" xlink:label="us-gaap_IncreaseDecreaseInPrepaidDeferredExpenseAndOtherAssets" xlink:type="locator"/>
    <link:label xlink:label="us-gaap_IncreaseDecreaseInPrepaidDeferredExpenseAndOtherAssets-label" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">us-gaap_IncreaseDecreaseInPrepaidDeferredExpenseAndOtherAssets</link:label>
    <link:label xlink:label="us-gaap_IncreaseDecreaseInPrepaidDeferredExpenseAndOtherAssets-label" xlink:role="http://www.xbrl.org/2009/role/negatedLabel" xlink:type="resource" xml:lang="en-US">Prepaid expense and other assets</link:label>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_IncreaseDecreaseInPrepaidDeferredExpenseAndOtherAssets" xlink:to="us-gaap_IncreaseDecreaseInPrepaidDeferredExpenseAndOtherAssets-label" xlink:type="arc"/>
    <link:loc xlink:href="aipt-20180630.xsd#aipt_StockOptionsThirtytwoMember" xlink:label="aipt_StockOptionsThirtytwoMember" xlink:type="locator"/>
    <link:label xlink:label="aipt_StockOptionsThirtytwoMember-label" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Stock Options Thirty-Two [Member]</link:label>
    <link:label xlink:label="aipt_StockOptionsThirtytwoMember-label" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">Represents information pertaining to the 32nd stock options.</link:label>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="aipt_StockOptionsThirtytwoMember" xlink:to="aipt_StockOptionsThirtytwoMember-label" xlink:type="arc"/>
    <link:loc xlink:href="https://xbrl.sec.gov/dei/2018/dei-2018-01-31.xsd#dei_DocumentFiscalPeriodFocus" xlink:label="dei_DocumentFiscalPeriodFocus" xlink:type="locator"/>
    <link:label xlink:label="dei_DocumentFiscalPeriodFocus-label" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Document Fiscal Period Focus</link:label>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="dei_DocumentFiscalPeriodFocus" xlink:to="dei_DocumentFiscalPeriodFocus-label" xlink:type="arc"/>
    <link:loc xlink:href="aipt-20180630.xsd#aipt_Warrants2018Member" xlink:label="aipt_Warrants2018Member" xlink:type="locator"/>
    <link:label xlink:label="aipt_Warrants2018Member-label" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Warrants 2018 [Member]</link:label>
    <link:label xlink:label="aipt_Warrants2018Member-label" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">Represents warrants 2018.</link:label>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="aipt_Warrants2018Member" xlink:to="aipt_Warrants2018Member-label" xlink:type="arc"/>
    <link:loc xlink:href="https://xbrl.sec.gov/dei/2018/dei-2018-01-31.xsd#dei_DocumentFiscalYearFocus" xlink:label="dei_DocumentFiscalYearFocus" xlink:type="locator"/>
    <link:label xlink:label="dei_DocumentFiscalYearFocus-label" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Document Fiscal Year Focus</link:label>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="dei_DocumentFiscalYearFocus" xlink:to="dei_DocumentFiscalYearFocus-label" xlink:type="arc"/>
    <link:loc xlink:href="aipt-20180630.xsd#aipt_StockOptions2018Member" xlink:label="aipt_StockOptions2018Member" xlink:type="locator"/>
    <link:label xlink:label="aipt_StockOptions2018Member-label" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Stock Options 2018 [Member]</link:label>
    <link:label xlink:label="aipt_StockOptions2018Member-label" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">Represents the stock options in 2018.</link:label>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="aipt_StockOptions2018Member" xlink:to="aipt_StockOptions2018Member-label" xlink:type="arc"/>
    <link:loc xlink:href="aipt-20180630.xsd#aipt_CorrectionsDueToRoundingForReverseStockSplitShares" xlink:label="aipt_CorrectionsDueToRoundingForReverseStockSplitShares" xlink:type="locator"/>
    <link:label xlink:label="aipt_CorrectionsDueToRoundingForReverseStockSplitShares-label" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Corrections due to rounding for reverse split and DTCC increase (in shares)</link:label>
    <link:label xlink:label="aipt_CorrectionsDueToRoundingForReverseStockSplitShares-label" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">Represents the number of shares related to corrections due to rounding for a reverse stock split.</link:label>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="aipt_CorrectionsDueToRoundingForReverseStockSplitShares" xlink:to="aipt_CorrectionsDueToRoundingForReverseStockSplitShares-label" xlink:type="arc"/>
    <link:loc xlink:href="https://xbrl.sec.gov/dei/2018/dei-2018-01-31.xsd#dei_DocumentPeriodEndDate" xlink:label="dei_DocumentPeriodEndDate" xlink:type="locator"/>
    <link:label xlink:label="dei_DocumentPeriodEndDate-label" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Document Period End Date</link:label>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="dei_DocumentPeriodEndDate" xlink:to="dei_DocumentPeriodEndDate-label" xlink:type="arc"/>
    <link:loc xlink:href="aipt-20180630.xsd#aipt_InvestorRelationsConsultantMember" xlink:label="aipt_InvestorRelationsConsultantMember" xlink:type="locator"/>
    <link:label xlink:label="aipt_InvestorRelationsConsultantMember-label" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Investor Relations Consultant [Member]</link:label>
    <link:label xlink:label="aipt_InvestorRelationsConsultantMember-label" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">Represents information pertaining to an investor relations consultant.</link:label>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="aipt_InvestorRelationsConsultantMember" xlink:to="aipt_InvestorRelationsConsultantMember-label" xlink:type="arc"/>
    <link:loc xlink:href="aipt-20180630.xsd#aipt_CorrectionsDueToRoundingForReverseStockSplitValue" xlink:label="aipt_CorrectionsDueToRoundingForReverseStockSplitValue" xlink:type="locator"/>
    <link:label xlink:label="aipt_CorrectionsDueToRoundingForReverseStockSplitValue-label" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Corrections due to rounding for reverse split and DTCC increase</link:label>
    <link:label xlink:label="aipt_CorrectionsDueToRoundingForReverseStockSplitValue-label" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">Represents the value of the corrections due to rounding for a reverse stock split.</link:label>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="aipt_CorrectionsDueToRoundingForReverseStockSplitValue" xlink:to="aipt_CorrectionsDueToRoundingForReverseStockSplitValue-label" xlink:type="arc"/>
    <link:loc xlink:href="aipt-20180630.xsd#aipt_CytoBioscienceMember" xlink:label="aipt_CytoBioscienceMember" xlink:type="locator"/>
    <link:label xlink:label="aipt_CytoBioscienceMember-label" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">CytoBioscience [Member]</link:label>
    <link:label xlink:label="aipt_CytoBioscienceMember-label" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">Information pertaining to CytoBioscience, Inc.</link:label>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="aipt_CytoBioscienceMember" xlink:to="aipt_CytoBioscienceMember-label" xlink:type="arc"/>
    <link:loc xlink:href="https://xbrl.sec.gov/dei/2018/dei-2018-01-31.xsd#dei_EntityEmergingGrowthCompany" xlink:label="dei_EntityEmergingGrowthCompany" xlink:type="locator"/>
    <link:label xlink:label="dei_EntityEmergingGrowthCompany-label" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Entity Emerging Growth Company</link:label>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="dei_EntityEmergingGrowthCompany" xlink:to="dei_EntityEmergingGrowthCompany-label" xlink:type="arc"/>
    <link:loc xlink:href="https://xbrl.sec.gov/dei/2018/dei-2018-01-31.xsd#dei_DocumentType" xlink:label="dei_DocumentType" xlink:type="locator"/>
    <link:label xlink:label="dei_DocumentType-label" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Document Type</link:label>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="dei_DocumentType" xlink:to="dei_DocumentType-label" xlink:type="arc"/>
    <link:loc xlink:href="https://xbrl.sec.gov/dei/2018/dei-2018-01-31.xsd#dei_EntitySmallBusiness" xlink:label="dei_EntitySmallBusiness" xlink:type="locator"/>
    <link:label xlink:label="dei_EntitySmallBusiness-label" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Entity Small Business</link:label>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="dei_EntitySmallBusiness" xlink:to="dei_EntitySmallBusiness-label" xlink:type="arc"/>
    <link:loc xlink:href="https://xbrl.sec.gov/dei/2018/dei-2018-01-31.xsd#dei_DocumentInformationLineItems" xlink:label="dei_DocumentInformationLineItems" xlink:type="locator"/>
    <link:label xlink:label="dei_DocumentInformationLineItems-label" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Document Information [Line Items]</link:label>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="dei_DocumentInformationLineItems" xlink:to="dei_DocumentInformationLineItems-label" xlink:type="arc"/>
    <link:loc xlink:href="https://xbrl.sec.gov/dei/2018/dei-2018-01-31.xsd#dei_DocumentInformationTable" xlink:label="dei_DocumentInformationTable" xlink:type="locator"/>
    <link:label xlink:label="dei_DocumentInformationTable-label" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Document Information [Table]</link:label>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="dei_DocumentInformationTable" xlink:to="dei_DocumentInformationTable-label" xlink:type="arc"/>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_AreaOfRealEstateProperty" xlink:label="us-gaap_AreaOfRealEstateProperty" xlink:type="locator"/>
    <link:label xlink:label="us-gaap_AreaOfRealEstateProperty-label" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">us-gaap_AreaOfRealEstateProperty</link:label>
    <link:label xlink:label="us-gaap_AreaOfRealEstateProperty-label" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Area of Real Estate Property</link:label>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_AreaOfRealEstateProperty" xlink:to="us-gaap_AreaOfRealEstateProperty-label" xlink:type="arc"/>
    <link:loc xlink:href="https://xbrl.sec.gov/dei/2018/dei-2018-01-31.xsd#dei_EntityFilerCategory" xlink:label="dei_EntityFilerCategory" xlink:type="locator"/>
    <link:label xlink:label="dei_EntityFilerCategory-label" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Entity Filer Category</link:label>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="dei_EntityFilerCategory" xlink:to="dei_EntityFilerCategory-label" xlink:type="arc"/>
    <link:loc xlink:href="https://xbrl.sec.gov/dei/2018/dei-2018-01-31.xsd#dei_EntityCurrentReportingStatus" xlink:label="dei_EntityCurrentReportingStatus" xlink:type="locator"/>
    <link:label xlink:label="dei_EntityCurrentReportingStatus-label" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Entity Current Reporting Status</link:label>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="dei_EntityCurrentReportingStatus" xlink:to="dei_EntityCurrentReportingStatus-label" xlink:type="arc"/>

    <link:loc xlink:href="aipt-20180630.xsd#aipt_StockOptionsTwentySixMember" xlink:label="aipt_StockOptionsTwentySixMember" xlink:type="locator"/>
    <link:label xlink:label="aipt_StockOptionsTwentySixMember-label" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Stock Options Twenty Six [Member]</link:label>
    <link:label xlink:label="aipt_StockOptionsTwentySixMember-label" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">Represents information pertaining to the 26th stock options.</link:label>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="aipt_StockOptionsTwentySixMember" xlink:to="aipt_StockOptionsTwentySixMember-label" xlink:type="arc"/>
    <link:loc xlink:href="aipt-20180630.xsd#aipt_StockOptionsTwentySevenMember" xlink:label="aipt_StockOptionsTwentySevenMember" xlink:type="locator"/>
    <link:label xlink:label="aipt_StockOptionsTwentySevenMember-label" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Stock Options Twenty Seven [Member]</link:label>
    <link:label xlink:label="aipt_StockOptionsTwentySevenMember-label" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">Represents information pertaining to the 27th stock options.</link:label>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="aipt_StockOptionsTwentySevenMember" xlink:to="aipt_StockOptionsTwentySevenMember-label" xlink:type="arc"/>
    <link:loc xlink:href="aipt-20180630.xsd#aipt_StockOptionsTwentyFiveMember" xlink:label="aipt_StockOptionsTwentyFiveMember" xlink:type="locator"/>
    <link:label xlink:label="aipt_StockOptionsTwentyFiveMember-label" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Stock Options Twenty Five [Member]</link:label>
    <link:label xlink:label="aipt_StockOptionsTwentyFiveMember-label" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">Represents the 25th stock options.</link:label>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="aipt_StockOptionsTwentyFiveMember" xlink:to="aipt_StockOptionsTwentyFiveMember-label" xlink:type="arc"/>
    <link:loc xlink:href="aipt-20180630.xsd#aipt_StockOptionsTwentyEightMember" xlink:label="aipt_StockOptionsTwentyEightMember" xlink:type="locator"/>
    <link:label xlink:label="aipt_StockOptionsTwentyEightMember-label" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Stock Options Twenty Eight [Member]</link:label>
    <link:label xlink:label="aipt_StockOptionsTwentyEightMember-label" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">Represents information pertaining to the 28th stock options.</link:label>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="aipt_StockOptionsTwentyEightMember" xlink:to="aipt_StockOptionsTwentyEightMember-label" xlink:type="arc"/>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_IncreaseDecreaseInAccountsReceivable" xlink:label="us-gaap_IncreaseDecreaseInAccountsReceivable" xlink:type="locator"/>
    <link:label xlink:label="us-gaap_IncreaseDecreaseInAccountsReceivable-label" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">us-gaap_IncreaseDecreaseInAccountsReceivable</link:label>
    <link:label xlink:label="us-gaap_IncreaseDecreaseInAccountsReceivable-label" xlink:role="http://www.xbrl.org/2009/role/negatedLabel" xlink:type="resource" xml:lang="en-US">Accounts receivable</link:label>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_IncreaseDecreaseInAccountsReceivable" xlink:to="us-gaap_IncreaseDecreaseInAccountsReceivable-label" xlink:type="arc"/>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_AdjustmentsToAdditionalPaidInCapitalSharebasedCompensationRequisiteServicePeriodRecognitionValue" xlink:label="us-gaap_AdjustmentsToAdditionalPaidInCapitalSharebasedCompensationRequisiteServicePeriodRecognitionValue" xlink:type="locator"/>
    <link:label xlink:label="us-gaap_AdjustmentsToAdditionalPaidInCapitalSharebasedCompensationRequisiteServicePeriodRecognitionValue-label" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Vesting Expense</link:label>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_AdjustmentsToAdditionalPaidInCapitalSharebasedCompensationRequisiteServicePeriodRecognitionValue" xlink:to="us-gaap_AdjustmentsToAdditionalPaidInCapitalSharebasedCompensationRequisiteServicePeriodRecognitionValue-label" xlink:type="arc"/>
    <link:loc xlink:href="https://xbrl.sec.gov/dei/2018/dei-2018-01-31.xsd#dei_EntityCentralIndexKey" xlink:label="dei_EntityCentralIndexKey" xlink:type="locator"/>
    <link:label xlink:label="dei_EntityCentralIndexKey-label" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Entity Central Index Key</link:label>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="dei_EntityCentralIndexKey" xlink:to="dei_EntityCentralIndexKey-label" xlink:type="arc"/>
    <link:loc xlink:href="aipt-20180630.xsd#aipt_StockOptionsThirtyMember" xlink:label="aipt_StockOptionsThirtyMember" xlink:type="locator"/>
    <link:label xlink:label="aipt_StockOptionsThirtyMember-label" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Stock Options Thirty [Member]</link:label>
    <link:label xlink:label="aipt_StockOptionsThirtyMember-label" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">Represents information pertaining to the 30th stock options.</link:label>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="aipt_StockOptionsThirtyMember" xlink:to="aipt_StockOptionsThirtyMember-label" xlink:type="arc"/>
    <link:loc xlink:href="https://xbrl.sec.gov/dei/2018/dei-2018-01-31.xsd#dei_EntityRegistrantName" xlink:label="dei_EntityRegistrantName" xlink:type="locator"/>
    <link:label xlink:label="dei_EntityRegistrantName-label" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Entity Registrant Name</link:label>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="dei_EntityRegistrantName" xlink:to="dei_EntityRegistrantName-label" xlink:type="arc"/>
    <link:loc xlink:href="aipt-20180630.xsd#aipt_WarrantFifteenMember" xlink:label="aipt_WarrantFifteenMember" xlink:type="locator"/>
    <link:label xlink:label="aipt_WarrantFifteenMember-label" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Warrant Fifteen [Member]</link:label>
    <link:label xlink:label="aipt_WarrantFifteenMember-label" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">Represents warrant fifteen.</link:label>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="aipt_WarrantFifteenMember" xlink:to="aipt_WarrantFifteenMember-label" xlink:type="arc"/>
    <link:loc xlink:href="https://xbrl.sec.gov/dei/2018/dei-2018-01-31.xsd#dei_EntityDomain" xlink:label="dei_EntityDomain" xlink:type="locator"/>
    <link:label xlink:label="dei_EntityDomain-label" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Entity [Domain]</link:label>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="dei_EntityDomain" xlink:to="dei_EntityDomain-label" xlink:type="arc"/>
    <link:loc xlink:href="aipt-20180630.xsd#aipt_EquityInstrumentsIssuedForManagementAndConsulting" xlink:label="aipt_EquityInstrumentsIssuedForManagementAndConsulting" xlink:type="locator"/>
    <link:label xlink:label="aipt_EquityInstrumentsIssuedForManagementAndConsulting-label" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Equity instruments issued for management and consulting</link:label>
    <link:label xlink:label="aipt_EquityInstrumentsIssuedForManagementAndConsulting-label" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">Represents the cash flow effect during the period of equity instruments issued for management and consulting.</link:label>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="aipt_EquityInstrumentsIssuedForManagementAndConsulting" xlink:to="aipt_EquityInstrumentsIssuedForManagementAndConsulting-label" xlink:type="arc"/>
    <link:loc xlink:href="https://xbrl.sec.gov/dei/2018/dei-2018-01-31.xsd#dei_LegalEntityAxis" xlink:label="dei_LegalEntityAxis" xlink:type="locator"/>
    <link:label xlink:label="dei_LegalEntityAxis-label" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Legal Entity [Axis]</link:label>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="dei_LegalEntityAxis" xlink:to="dei_LegalEntityAxis-label" xlink:type="arc"/>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_AmortizationOfIntangibleAssets" xlink:label="us-gaap_AmortizationOfIntangibleAssets" xlink:type="locator"/>
    <link:label xlink:label="us-gaap_AmortizationOfIntangibleAssets-label" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">us-gaap_AmortizationOfIntangibleAssets</link:label>
    <link:label xlink:label="us-gaap_AmortizationOfIntangibleAssets-label" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Amortization of Intangible Assets, Total</link:label>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_AmortizationOfIntangibleAssets" xlink:to="us-gaap_AmortizationOfIntangibleAssets-label" xlink:type="arc"/>
    <link:loc xlink:href="aipt-20180630.xsd#aipt_AdvancesToDeLageLandenMember" xlink:label="aipt_AdvancesToDeLageLandenMember" xlink:type="locator"/>
    <link:label xlink:label="aipt_AdvancesToDeLageLandenMember-label" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Advances to De Lage Landen [Member]</link:label>
    <link:label xlink:label="aipt_AdvancesToDeLageLandenMember-label" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">Represents advances to De Lage Landen.</link:label>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="aipt_AdvancesToDeLageLandenMember" xlink:to="aipt_AdvancesToDeLageLandenMember-label" xlink:type="arc"/>
    <link:loc xlink:href="aipt-20180630.xsd#aipt_CorporateOfficeMinnesotaMember" xlink:label="aipt_CorporateOfficeMinnesotaMember" xlink:type="locator"/>
    <link:label xlink:label="aipt_CorporateOfficeMinnesotaMember-label" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Corporate Office, Minnesota [Member]</link:label>
    <link:label xlink:label="aipt_CorporateOfficeMinnesotaMember-label" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">Information pertaining to the corporate office in Eagan, Minnesota.</link:label>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="aipt_CorporateOfficeMinnesotaMember" xlink:to="aipt_CorporateOfficeMinnesotaMember-label" xlink:type="arc"/>
    <link:loc xlink:href="aipt-20180630.xsd#aipt_The2018PublicOfferingMember" xlink:label="aipt_The2018PublicOfferingMember" xlink:type="locator"/>
    <link:label xlink:label="aipt_The2018PublicOfferingMember-label" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">The 2018 Public Offering [Member]</link:label>
    <link:label xlink:label="aipt_The2018PublicOfferingMember-label" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">Represents information about the 2018 public offering.</link:label>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="aipt_The2018PublicOfferingMember" xlink:to="aipt_The2018PublicOfferingMember-label" xlink:type="arc"/>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_IncreaseDecreaseInNotesReceivableCurrent" xlink:label="us-gaap_IncreaseDecreaseInNotesReceivableCurrent" xlink:type="locator"/>
    <link:label xlink:label="us-gaap_IncreaseDecreaseInNotesReceivableCurrent-label" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">us-gaap_IncreaseDecreaseInNotesReceivableCurrent</link:label>
    <link:label xlink:label="us-gaap_IncreaseDecreaseInNotesReceivableCurrent-label" xlink:role="http://www.xbrl.org/2009/role/negatedLabel" xlink:type="resource" xml:lang="en-US">Advance on notes receivable</link:label>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_IncreaseDecreaseInNotesReceivableCurrent" xlink:to="us-gaap_IncreaseDecreaseInNotesReceivableCurrent-label" xlink:type="arc"/>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_StockRedeemedOrCalledDuringPeriodShares" xlink:label="us-gaap_StockRedeemedOrCalledDuringPeriodShares" xlink:type="locator"/>
    <link:label xlink:label="us-gaap_StockRedeemedOrCalledDuringPeriodShares-label" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">us-gaap_StockRedeemedOrCalledDuringPeriodShares</link:label>
    <link:label xlink:label="us-gaap_StockRedeemedOrCalledDuringPeriodShares-label" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Stock Redeemed or Called During Period, Shares</link:label>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_StockRedeemedOrCalledDuringPeriodShares" xlink:to="us-gaap_StockRedeemedOrCalledDuringPeriodShares-label" xlink:type="arc"/>
    <link:loc xlink:href="aipt-20180630.xsd#aipt_OfficeSpaceMember" xlink:label="aipt_OfficeSpaceMember" xlink:type="locator"/>
    <link:label xlink:label="aipt_OfficeSpaceMember-label" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Office Space [Member]</link:label>
    <link:label xlink:label="aipt_OfficeSpaceMember-label" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">Information pertaining to office space.</link:label>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="aipt_OfficeSpaceMember" xlink:to="aipt_OfficeSpaceMember-label" xlink:type="arc"/>
    <link:loc xlink:href="aipt-20180630.xsd#aipt_DefinedContributionPlanEmployerContributionAmount" xlink:label="aipt_DefinedContributionPlanEmployerContributionAmount" xlink:type="locator"/>
    <link:label xlink:label="aipt_DefinedContributionPlanEmployerContributionAmount-label" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">aipt_DefinedContributionPlanEmployerContributionAmount</link:label>
    <link:label xlink:label="aipt_DefinedContributionPlanEmployerContributionAmount-label" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Defined Contribution Plan, Employer Contribution Amount</link:label>
    <link:label xlink:label="aipt_DefinedContributionPlanEmployerContributionAmount-label" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">Amount of contributions made by an employer to a defined contribution plan.</link:label>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="aipt_DefinedContributionPlanEmployerContributionAmount" xlink:to="aipt_DefinedContributionPlanEmployerContributionAmount-label" xlink:type="arc"/>

    <link:loc xlink:href="aipt-20180630.xsd#aipt_ProceedsFromUnderwriterSharesExercisedNet" xlink:label="aipt_ProceedsFromUnderwriterSharesExercisedNet" xlink:type="locator"/>
    <link:label xlink:label="aipt_ProceedsFromUnderwriterSharesExercisedNet-label" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">aipt_ProceedsFromUnderwriterSharesExercisedNet</link:label>
    <link:label xlink:label="aipt_ProceedsFromUnderwriterSharesExercisedNet-label" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Proceeds from Underwriter Shares Exercised, Net</link:label>
    <link:label xlink:label="aipt_ProceedsFromUnderwriterSharesExercisedNet-label" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">The cash inflow associated with the exercise of underwriter shares, net of deductions.</link:label>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="aipt_ProceedsFromUnderwriterSharesExercisedNet" xlink:to="aipt_ProceedsFromUnderwriterSharesExercisedNet-label" xlink:type="arc"/>
    <link:loc xlink:href="aipt-20180630.xsd#aipt_SeriesEWarrantsMember" xlink:label="aipt_SeriesEWarrantsMember" xlink:type="locator"/>
    <link:label xlink:label="aipt_SeriesEWarrantsMember-label" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Series E Warrants [Member]</link:label>
    <link:label xlink:label="aipt_SeriesEWarrantsMember-label" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">Represents information about series E warrants.</link:label>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="aipt_SeriesEWarrantsMember" xlink:to="aipt_SeriesEWarrantsMember-label" xlink:type="arc"/>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_AdvertisingExpense" xlink:label="us-gaap_AdvertisingExpense" xlink:type="locator"/>
    <link:label xlink:label="us-gaap_AdvertisingExpense-label" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">us-gaap_AdvertisingExpense</link:label>
    <link:label xlink:label="us-gaap_AdvertisingExpense-label" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Advertising Expense</link:label>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_AdvertisingExpense" xlink:to="us-gaap_AdvertisingExpense-label" xlink:type="arc"/>
    <link:loc xlink:href="aipt-20180630.xsd#aipt_StockIssuedDuringPeriodUnderwriterDiscount" xlink:label="aipt_StockIssuedDuringPeriodUnderwriterDiscount" xlink:type="locator"/>
    <link:label xlink:label="aipt_StockIssuedDuringPeriodUnderwriterDiscount-label" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">aipt_StockIssuedDuringPeriodUnderwriterDiscount</link:label>
    <link:label xlink:label="aipt_StockIssuedDuringPeriodUnderwriterDiscount-label" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Stock Issued During Period, Underwriter Discount</link:label>
    <link:label xlink:label="aipt_StockIssuedDuringPeriodUnderwriterDiscount-label" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">Represents the discount on underwriter shares exercised.</link:label>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="aipt_StockIssuedDuringPeriodUnderwriterDiscount" xlink:to="aipt_StockIssuedDuringPeriodUnderwriterDiscount-label" xlink:type="arc"/>
    <link:loc xlink:href="aipt-20180630.xsd#aipt_HelomicsHoldingCorpMember" xlink:label="aipt_HelomicsHoldingCorpMember" xlink:type="locator"/>
    <link:label xlink:label="aipt_HelomicsHoldingCorpMember-label" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Helomics Holding Corp. [Member]</link:label>
    <link:label xlink:label="aipt_HelomicsHoldingCorpMember-label" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">Information pertaining to Helomics Holding Corporation.</link:label>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="aipt_HelomicsHoldingCorpMember" xlink:to="aipt_HelomicsHoldingCorpMember-label" xlink:type="arc"/>
    <link:loc xlink:href="aipt-20180630.xsd#aipt_UnderwriterDiscountPercentage" xlink:label="aipt_UnderwriterDiscountPercentage" xlink:type="locator"/>
    <link:label xlink:label="aipt_UnderwriterDiscountPercentage-label" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">aipt_UnderwriterDiscountPercentage</link:label>
    <link:label xlink:label="aipt_UnderwriterDiscountPercentage-label" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Underwriter Discount Percentage</link:label>
    <link:label xlink:label="aipt_UnderwriterDiscountPercentage-label" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">Represents the discount on underwriter shares exercised.</link:label>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="aipt_UnderwriterDiscountPercentage" xlink:to="aipt_UnderwriterDiscountPercentage-label" xlink:type="arc"/>
    <link:loc xlink:href="aipt-20180630.xsd#aipt_ShareExchangeAgreementSharesReceived" xlink:label="aipt_ShareExchangeAgreementSharesReceived" xlink:type="locator"/>
    <link:label xlink:label="aipt_ShareExchangeAgreementSharesReceived-label" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">aipt_ShareExchangeAgreementSharesReceived</link:label>
    <link:label xlink:label="aipt_ShareExchangeAgreementSharesReceived-label" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Share Exchange Agreement, Shares Received</link:label>
    <link:label xlink:label="aipt_ShareExchangeAgreementSharesReceived-label" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">Represents the number of shares received in a share exchange agreement.</link:label>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="aipt_ShareExchangeAgreementSharesReceived" xlink:to="aipt_ShareExchangeAgreementSharesReceived-label" xlink:type="arc"/>
    <link:loc xlink:href="aipt-20180630.xsd#aipt_ShareExchangeAgreementPotentialInterest" xlink:label="aipt_ShareExchangeAgreementPotentialInterest" xlink:type="locator"/>
    <link:label xlink:label="aipt_ShareExchangeAgreementPotentialInterest-label" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">aipt_ShareExchangeAgreementPotentialInterest</link:label>
    <link:label xlink:label="aipt_ShareExchangeAgreementPotentialInterest-label" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Share Exchange Agreement, Potential Interest</link:label>
    <link:label xlink:label="aipt_ShareExchangeAgreementPotentialInterest-label" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">Represents the potential holding interest of outstanding common stock, upon the election of converting outstanding notes receivable into common stock.</link:label>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="aipt_ShareExchangeAgreementPotentialInterest" xlink:to="aipt_ShareExchangeAgreementPotentialInterest-label" xlink:type="arc"/>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_InvestmentTypeCategorizationMember" xlink:label="us-gaap_InvestmentTypeCategorizationMember" xlink:type="locator"/>
    <link:label xlink:label="us-gaap_InvestmentTypeCategorizationMember-label" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Investments [Domain]</link:label>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_InvestmentTypeCategorizationMember" xlink:to="us-gaap_InvestmentTypeCategorizationMember-label" xlink:type="arc"/>
    <link:loc xlink:href="aipt-20180630.xsd#aipt_ShareExchangeAgreementContingentRevenueMinimum" xlink:label="aipt_ShareExchangeAgreementContingentRevenueMinimum" xlink:type="locator"/>
    <link:label xlink:label="aipt_ShareExchangeAgreementContingentRevenueMinimum-label" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">aipt_ShareExchangeAgreementContingentRevenueMinimum</link:label>
    <link:label xlink:label="aipt_ShareExchangeAgreementContingentRevenueMinimum-label" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Share Exchange Agreement, Contingent Revenue, Minimum</link:label>
    <link:label xlink:label="aipt_ShareExchangeAgreementContingentRevenueMinimum-label" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">The minimum amount of revenue to be achieved by the counterparty of the share exchange agreement, in order for the issuance of common stock to be fulfilled.</link:label>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="aipt_ShareExchangeAgreementContingentRevenueMinimum" xlink:to="aipt_ShareExchangeAgreementContingentRevenueMinimum-label" xlink:type="arc"/>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_IncreaseDecreaseInInventories" xlink:label="us-gaap_IncreaseDecreaseInInventories" xlink:type="locator"/>
    <link:label xlink:label="us-gaap_IncreaseDecreaseInInventories-label" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">us-gaap_IncreaseDecreaseInInventories</link:label>
    <link:label xlink:label="us-gaap_IncreaseDecreaseInInventories-label" xlink:role="http://www.xbrl.org/2009/role/negatedLabel" xlink:type="resource" xml:lang="en-US">Inventories</link:label>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_IncreaseDecreaseInInventories" xlink:to="us-gaap_IncreaseDecreaseInInventories-label" xlink:type="arc"/>
    <link:loc xlink:href="https://xbrl.sec.gov/dei/2018/dei-2018-01-31.xsd#dei_TradingSymbol" xlink:label="dei_TradingSymbol" xlink:type="locator"/>
    <link:label xlink:label="dei_TradingSymbol-label" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Trading Symbol</link:label>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="dei_TradingSymbol" xlink:to="dei_TradingSymbol-label" xlink:type="arc"/>
    <link:loc xlink:href="aipt-20180630.xsd#aipt_ShareExchangeAgreementConvertibleNotesReceivable" xlink:label="aipt_ShareExchangeAgreementConvertibleNotesReceivable" xlink:type="locator"/>
    <link:label xlink:label="aipt_ShareExchangeAgreementConvertibleNotesReceivable-label" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">aipt_ShareExchangeAgreementConvertibleNotesReceivable</link:label>
    <link:label xlink:label="aipt_ShareExchangeAgreementConvertibleNotesReceivable-label" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Share Exchange Agreement, Convertible Notes Receivable</link:label>
    <link:label xlink:label="aipt_ShareExchangeAgreementConvertibleNotesReceivable-label" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">Represents the amount of outstanding notes receivable that are electable to be converted into outstanding shares of the holders common stock.</link:label>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="aipt_ShareExchangeAgreementConvertibleNotesReceivable" xlink:to="aipt_ShareExchangeAgreementConvertibleNotesReceivable-label" xlink:type="arc"/>
    <link:loc xlink:href="aipt-20180630.xsd#aipt_ShareExchangeAgreementConvertibleNotesPercentOfStock" xlink:label="aipt_ShareExchangeAgreementConvertibleNotesPercentOfStock" xlink:type="locator"/>
    <link:label xlink:label="aipt_ShareExchangeAgreementConvertibleNotesPercentOfStock-label" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">aipt_ShareExchangeAgreementConvertibleNotesPercentOfStock</link:label>
    <link:label xlink:label="aipt_ShareExchangeAgreementConvertibleNotesPercentOfStock-label" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Share Exchange Agreement, Convertible Notes, Percent of Stock</link:label>
    <link:label xlink:label="aipt_ShareExchangeAgreementConvertibleNotesPercentOfStock-label" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">Represents the percentage of outstanding common stock to be received upon the conversion of outstanding notes receivable.</link:label>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="aipt_ShareExchangeAgreementConvertibleNotesPercentOfStock" xlink:to="aipt_ShareExchangeAgreementConvertibleNotesPercentOfStock-label" xlink:type="arc"/>
    <link:loc xlink:href="aipt-20180630.xsd#aipt_ShareExchangeAgreementSharesReceivedUponConversionOfReceivables" xlink:label="aipt_ShareExchangeAgreementSharesReceivedUponConversionOfReceivables" xlink:type="locator"/>
    <link:label xlink:label="aipt_ShareExchangeAgreementSharesReceivedUponConversionOfReceivables-label" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">aipt_ShareExchangeAgreementSharesReceivedUponConversionOfReceivables</link:label>
    <link:label xlink:label="aipt_ShareExchangeAgreementSharesReceivedUponConversionOfReceivables-label" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Share Exchange Agreement, Shares Received Upon Conversion of Receivables</link:label>
    <link:label xlink:label="aipt_ShareExchangeAgreementSharesReceivedUponConversionOfReceivables-label" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">Represents the number of shares received upon the conversion of outstanding notes receivables.</link:label>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="aipt_ShareExchangeAgreementSharesReceivedUponConversionOfReceivables" xlink:to="aipt_ShareExchangeAgreementSharesReceivedUponConversionOfReceivables-label" xlink:type="arc"/>
    <link:loc xlink:href="aipt-20180630.xsd#aipt_HoldingInterestPreferredStock" xlink:label="aipt_HoldingInterestPreferredStock" xlink:type="locator"/>
    <link:label xlink:label="aipt_HoldingInterestPreferredStock-label" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">aipt_HoldingInterestPreferredStock</link:label>
    <link:label xlink:label="aipt_HoldingInterestPreferredStock-label" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Holding Interest, Preferred Stock</link:label>
    <link:label xlink:label="aipt_HoldingInterestPreferredStock-label" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">Represents the number of preferred shares held by the company.</link:label>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="aipt_HoldingInterestPreferredStock" xlink:to="aipt_HoldingInterestPreferredStock-label" xlink:type="arc"/>
    <link:loc xlink:href="aipt-20180630.xsd#aipt_ConvertiblePreferredStockHeldConversionFeaturePercent" xlink:label="aipt_ConvertiblePreferredStockHeldConversionFeaturePercent" xlink:type="locator"/>
    <link:label xlink:label="aipt_ConvertiblePreferredStockHeldConversionFeaturePercent-label" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">aipt_ConvertiblePreferredStockHeldConversionFeaturePercent</link:label>
    <link:label xlink:label="aipt_ConvertiblePreferredStockHeldConversionFeaturePercent-label" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Convertible Preferred Stock Held, Conversion Feature, Percent</link:label>
    <link:label xlink:label="aipt_ConvertiblePreferredStockHeldConversionFeaturePercent-label" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">Represents the percentage of capital stock interests, upon the conversion of convertible preferred stock held by the company.</link:label>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="aipt_ConvertiblePreferredStockHeldConversionFeaturePercent" xlink:to="aipt_ConvertiblePreferredStockHeldConversionFeaturePercent-label" xlink:type="arc"/>
    <link:loc xlink:href="aipt-20180630.xsd#aipt_ShareExchangeAgreementOutstandingReceivablesAmountConverted" xlink:label="aipt_ShareExchangeAgreementOutstandingReceivablesAmountConverted" xlink:type="locator"/>
    <link:label xlink:label="aipt_ShareExchangeAgreementOutstandingReceivablesAmountConverted-label" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">aipt_ShareExchangeAgreementOutstandingReceivablesAmountConverted</link:label>
    <link:label xlink:label="aipt_ShareExchangeAgreementOutstandingReceivablesAmountConverted-label" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Share Exchange Agreement, Outstanding Receivables, Amount Converted</link:label>
    <link:label xlink:label="aipt_ShareExchangeAgreementOutstandingReceivablesAmountConverted-label" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">Represents the amount of outstanding notes receivable that have been converted into common stock.</link:label>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="aipt_ShareExchangeAgreementOutstandingReceivablesAmountConverted" xlink:to="aipt_ShareExchangeAgreementOutstandingReceivablesAmountConverted-label" xlink:type="arc"/>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_InvestmentTypeAxis" xlink:label="us-gaap_InvestmentTypeAxis" xlink:type="locator"/>
    <link:label xlink:label="us-gaap_InvestmentTypeAxis-label" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Investment Type [Axis]</link:label>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_InvestmentTypeAxis" xlink:to="us-gaap_InvestmentTypeAxis-label" xlink:type="arc"/>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_StockIssuedDuringPeriodSharesAcquisitions" xlink:label="us-gaap_StockIssuedDuringPeriodSharesAcquisitions" xlink:type="locator"/>
    <link:label xlink:label="us-gaap_StockIssuedDuringPeriodSharesAcquisitions-label" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Investment pursuant to Helomics 20% acquisition (in shares)</link:label>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_StockIssuedDuringPeriodSharesAcquisitions" xlink:to="us-gaap_StockIssuedDuringPeriodSharesAcquisitions-label" xlink:type="arc"/>
    <link:loc xlink:href="aipt-20180630.xsd#aipt_HoldingInterestCommonStock" xlink:label="aipt_HoldingInterestCommonStock" xlink:type="locator"/>
    <link:label xlink:label="aipt_HoldingInterestCommonStock-label" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">aipt_HoldingInterestCommonStock</link:label>
    <link:label xlink:label="aipt_HoldingInterestCommonStock-label" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Holding Interest, Common Stock</link:label>
    <link:label xlink:label="aipt_HoldingInterestCommonStock-label" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">Represents the number of shares held by the company.</link:label>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="aipt_HoldingInterestCommonStock" xlink:to="aipt_HoldingInterestCommonStock-label" xlink:type="arc"/>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_StockIssuedDuringPeriodValueConversionOfConvertibleSecurities" xlink:label="us-gaap_StockIssuedDuringPeriodValueConversionOfConvertibleSecurities" xlink:type="locator"/>
    <link:label xlink:label="us-gaap_StockIssuedDuringPeriodValueConversionOfConvertibleSecurities-label" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Preferred conversion to common shares pursuant to private placement agreement</link:label>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_StockIssuedDuringPeriodValueConversionOfConvertibleSecurities" xlink:to="us-gaap_StockIssuedDuringPeriodValueConversionOfConvertibleSecurities-label" xlink:type="arc"/>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_StockIssuedDuringPeriodSharesConversionOfConvertibleSecurities" xlink:label="us-gaap_StockIssuedDuringPeriodSharesConversionOfConvertibleSecurities" xlink:type="locator"/>
    <link:label xlink:label="us-gaap_StockIssuedDuringPeriodSharesConversionOfConvertibleSecurities-label" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Preferred conversion to common shares pursuant to private placement agreement (in shares)</link:label>
    <link:label xlink:label="us-gaap_StockIssuedDuringPeriodSharesConversionOfConvertibleSecurities-label" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Stock Issued During Period, Shares, Conversion of Convertible Securities</link:label>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_StockIssuedDuringPeriodSharesConversionOfConvertibleSecurities" xlink:to="us-gaap_StockIssuedDuringPeriodSharesConversionOfConvertibleSecurities-label" xlink:type="arc"/>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_StockIssuedDuringPeriodValueAcquisitions" xlink:label="us-gaap_StockIssuedDuringPeriodValueAcquisitions" xlink:type="locator"/>
    <link:label xlink:label="us-gaap_StockIssuedDuringPeriodValueAcquisitions-label" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Investment pursuant to Helomics 20% acquisition</link:label>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_StockIssuedDuringPeriodValueAcquisitions" xlink:to="us-gaap_StockIssuedDuringPeriodValueAcquisitions-label" xlink:type="arc"/>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_StockIssuedDuringPeriodSharesStockOptionsExercised" xlink:label="us-gaap_StockIssuedDuringPeriodSharesStockOptionsExercised" xlink:type="locator"/>
    <link:label xlink:label="us-gaap_StockIssuedDuringPeriodSharesStockOptionsExercised-label" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Shares issued for two options exercised at $65.75 per share (in shares)</link:label>
    <link:label xlink:label="us-gaap_StockIssuedDuringPeriodSharesStockOptionsExercised-label" xlink:role="http://www.xbrl.org/2009/role/negatedLabel" xlink:type="resource" xml:lang="en-US">Number of Shares Exercised (in shares)</link:label>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_StockIssuedDuringPeriodSharesStockOptionsExercised" xlink:to="us-gaap_StockIssuedDuringPeriodSharesStockOptionsExercised-label" xlink:type="arc"/>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_TableTextBlock" xlink:label="us-gaap_TableTextBlock" xlink:type="locator"/>
    <link:label xlink:label="us-gaap_TableTextBlock-label" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">us-gaap_TableTextBlock</link:label>
    <link:label xlink:label="us-gaap_TableTextBlock-label" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Notes Tables</link:label>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_TableTextBlock" xlink:to="us-gaap_TableTextBlock-label" xlink:type="arc"/>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_StockIssuedDuringPeriodValueStockOptionsExercised" xlink:label="us-gaap_StockIssuedDuringPeriodValueStockOptionsExercised" xlink:type="locator"/>
    <link:label xlink:label="us-gaap_StockIssuedDuringPeriodValueStockOptionsExercised-label" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Shares issued for two options exercised at $65.75 per share</link:label>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_StockIssuedDuringPeriodValueStockOptionsExercised" xlink:to="us-gaap_StockIssuedDuringPeriodValueStockOptionsExercised-label" xlink:type="arc"/>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_DirectorMember" xlink:label="us-gaap_DirectorMember" xlink:type="locator"/>
    <link:label xlink:label="us-gaap_DirectorMember-label" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Director [Member]</link:label>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_DirectorMember" xlink:to="us-gaap_DirectorMember-label" xlink:type="arc"/>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_RelatedPartyTransactionsByRelatedPartyAxis" xlink:label="us-gaap_RelatedPartyTransactionsByRelatedPartyAxis" xlink:type="locator"/>
    <link:label xlink:label="us-gaap_RelatedPartyTransactionsByRelatedPartyAxis-label" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Related Party [Axis]</link:label>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_RelatedPartyTransactionsByRelatedPartyAxis" xlink:to="us-gaap_RelatedPartyTransactionsByRelatedPartyAxis-label" xlink:type="arc"/>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_RelatedPartyDomain" xlink:label="us-gaap_RelatedPartyDomain" xlink:type="locator"/>
    <link:label xlink:label="us-gaap_RelatedPartyDomain-label" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Related Party [Domain]</link:label>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_RelatedPartyDomain" xlink:to="us-gaap_RelatedPartyDomain-label" xlink:type="arc"/>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsGrantsInPeriodGross" xlink:label="us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsGrantsInPeriodGross" xlink:type="locator"/>
    <link:label xlink:label="us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsGrantsInPeriodGross-label" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsGrantsInPeriodGross</link:label>
    <link:label xlink:label="us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsGrantsInPeriodGross-label" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Share-based Compensation Arrangement by Share-based Payment Award, Options, Grants in Period, Gross</link:label>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsGrantsInPeriodGross" xlink:to="us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsGrantsInPeriodGross-label" xlink:type="arc"/>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_ProductWarrantyExpense" xlink:label="us-gaap_ProductWarrantyExpense" xlink:type="locator"/>
    <link:label xlink:label="us-gaap_ProductWarrantyExpense-label" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">us-gaap_ProductWarrantyExpense</link:label>
    <link:label xlink:label="us-gaap_ProductWarrantyExpense-label" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Product Warranty Expense</link:label>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_ProductWarrantyExpense" xlink:to="us-gaap_ProductWarrantyExpense-label" xlink:type="arc"/>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_SellingAndMarketingExpense" xlink:label="us-gaap_SellingAndMarketingExpense" xlink:type="locator"/>
    <link:label xlink:label="us-gaap_SellingAndMarketingExpense-label" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Sales and marketing expense</link:label>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_SellingAndMarketingExpense" xlink:to="us-gaap_SellingAndMarketingExpense-label" xlink:type="arc"/>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_StockIssuedDuringPeriodSharesNewIssues" xlink:label="us-gaap_StockIssuedDuringPeriodSharesNewIssues" xlink:type="locator"/>
    <link:label xlink:label="us-gaap_StockIssuedDuringPeriodSharesNewIssues-label" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Shares issued pursuant to the public offering (in shares)</link:label>
    <link:label xlink:label="us-gaap_StockIssuedDuringPeriodSharesNewIssues-label" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Stock Issued During Period, Shares, New Issues</link:label>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_StockIssuedDuringPeriodSharesNewIssues" xlink:to="us-gaap_StockIssuedDuringPeriodSharesNewIssues-label" xlink:type="arc"/>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_OperatingCostsAndExpenses" xlink:label="us-gaap_OperatingCostsAndExpenses" xlink:type="locator"/>
    <link:label xlink:label="us-gaap_OperatingCostsAndExpenses-label" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Operations expense</link:label>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_OperatingCostsAndExpenses" xlink:to="us-gaap_OperatingCostsAndExpenses-label" xlink:type="arc"/>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_StockIssuedDuringPeriodValueIssuedForServices" xlink:label="us-gaap_StockIssuedDuringPeriodValueIssuedForServices" xlink:type="locator"/>
    <link:label xlink:label="us-gaap_StockIssuedDuringPeriodValueIssuedForServices-label" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Shares issued for services</link:label>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_StockIssuedDuringPeriodValueIssuedForServices" xlink:to="us-gaap_StockIssuedDuringPeriodValueIssuedForServices-label" xlink:type="arc"/>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_InventoryRawMaterialsNetOfReserves" xlink:label="us-gaap_InventoryRawMaterialsNetOfReserves" xlink:type="locator"/>
    <link:label xlink:label="us-gaap_InventoryRawMaterialsNetOfReserves-label" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:type="resource" xml:lang="en-US">Raw materials</link:label>
    <link:label xlink:label="us-gaap_InventoryRawMaterialsNetOfReserves-label" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">us-gaap_InventoryRawMaterialsNetOfReserves</link:label>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_InventoryRawMaterialsNetOfReserves" xlink:to="us-gaap_InventoryRawMaterialsNetOfReserves-label" xlink:type="arc"/>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_StockIssuedDuringPeriodSharesIssuedForServices" xlink:label="us-gaap_StockIssuedDuringPeriodSharesIssuedForServices" xlink:type="locator"/>
    <link:label xlink:label="us-gaap_StockIssuedDuringPeriodSharesIssuedForServices-label" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Shares issued for services (in shares)</link:label>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_StockIssuedDuringPeriodSharesIssuedForServices" xlink:to="us-gaap_StockIssuedDuringPeriodSharesIssuedForServices-label" xlink:type="arc"/>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_LiabilitiesAndStockholdersEquity" xlink:label="us-gaap_LiabilitiesAndStockholdersEquity" xlink:type="locator"/>
    <link:label xlink:label="us-gaap_LiabilitiesAndStockholdersEquity-label" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">us-gaap_LiabilitiesAndStockholdersEquity</link:label>
    <link:label xlink:label="us-gaap_LiabilitiesAndStockholdersEquity-label" xlink:role="http://www.xbrl.org/2003/role/totalLabel" xlink:type="resource" xml:lang="en-US">Total Liabilities and Stockholders' Equity</link:label>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_LiabilitiesAndStockholdersEquity" xlink:to="us-gaap_LiabilitiesAndStockholdersEquity-label" xlink:type="arc"/>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_CashUninsuredAmount" xlink:label="us-gaap_CashUninsuredAmount" xlink:type="locator"/>
    <link:label xlink:label="us-gaap_CashUninsuredAmount-label" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">us-gaap_CashUninsuredAmount</link:label>
    <link:label xlink:label="us-gaap_CashUninsuredAmount-label" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Cash, Uninsured Amount</link:label>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_CashUninsuredAmount" xlink:to="us-gaap_CashUninsuredAmount-label" xlink:type="arc"/>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_InventoryFinishedGoodsNetOfReserves" xlink:label="us-gaap_InventoryFinishedGoodsNetOfReserves" xlink:type="locator"/>
    <link:label xlink:label="us-gaap_InventoryFinishedGoodsNetOfReserves-label" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:type="resource" xml:lang="en-US">Finished goods</link:label>
    <link:label xlink:label="us-gaap_InventoryFinishedGoodsNetOfReserves-label" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">us-gaap_InventoryFinishedGoodsNetOfReserves</link:label>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_InventoryFinishedGoodsNetOfReserves" xlink:to="us-gaap_InventoryFinishedGoodsNetOfReserves-label" xlink:type="arc"/>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_InventoryWorkInProcessNetOfReserves" xlink:label="us-gaap_InventoryWorkInProcessNetOfReserves" xlink:type="locator"/>
    <link:label xlink:label="us-gaap_InventoryWorkInProcessNetOfReserves-label" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:type="resource" xml:lang="en-US">Work-In-Process</link:label>
    <link:label xlink:label="us-gaap_InventoryWorkInProcessNetOfReserves-label" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">us-gaap_InventoryWorkInProcessNetOfReserves</link:label>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_InventoryWorkInProcessNetOfReserves" xlink:to="us-gaap_InventoryWorkInProcessNetOfReserves-label" xlink:type="arc"/>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_StockIssuedDuringPeriodValueNewIssues" xlink:label="us-gaap_StockIssuedDuringPeriodValueNewIssues" xlink:type="locator"/>
    <link:label xlink:label="us-gaap_StockIssuedDuringPeriodValueNewIssues-label" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Shares issued pursuant to the public offering</link:label>
    <link:label xlink:label="us-gaap_StockIssuedDuringPeriodValueNewIssues-label" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Stock Issued During Period, Value, New Issues</link:label>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_StockIssuedDuringPeriodValueNewIssues" xlink:to="us-gaap_StockIssuedDuringPeriodValueNewIssues-label" xlink:type="arc"/>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_RetainedEarningsAccumulatedDeficit" xlink:label="us-gaap_RetainedEarningsAccumulatedDeficit" xlink:type="locator"/>
    <link:label xlink:label="us-gaap_RetainedEarningsAccumulatedDeficit-label" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">us-gaap_RetainedEarningsAccumulatedDeficit</link:label>
    <link:label xlink:label="us-gaap_RetainedEarningsAccumulatedDeficit-label" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Retained Earnings (Accumulated Deficit), Ending Balance</link:label>
    <link:label xlink:label="us-gaap_RetainedEarningsAccumulatedDeficit-label" xlink:role="http://www.xbrl.org/2009/role/negatedLabel" xlink:type="resource" xml:lang="en-US">Accumulated deficit</link:label>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_RetainedEarningsAccumulatedDeficit" xlink:to="us-gaap_RetainedEarningsAccumulatedDeficit-label" xlink:type="arc"/>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_ResearchAndDevelopmentExpense" xlink:label="us-gaap_ResearchAndDevelopmentExpense" xlink:type="locator"/>
    <link:label xlink:label="us-gaap_ResearchAndDevelopmentExpense-label" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">us-gaap_ResearchAndDevelopmentExpense</link:label>
    <link:label xlink:label="us-gaap_ResearchAndDevelopmentExpense-label" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Research and Development Expense, Total</link:label>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_ResearchAndDevelopmentExpense" xlink:to="us-gaap_ResearchAndDevelopmentExpense-label" xlink:type="arc"/>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_AccumulatedOtherComprehensiveIncomeLossNetOfTax" xlink:label="us-gaap_AccumulatedOtherComprehensiveIncomeLossNetOfTax" xlink:type="locator"/>
    <link:label xlink:label="us-gaap_AccumulatedOtherComprehensiveIncomeLossNetOfTax-label" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Accumulated Other Comprehensive Income</link:label>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_AccumulatedOtherComprehensiveIncomeLossNetOfTax" xlink:to="us-gaap_AccumulatedOtherComprehensiveIncomeLossNetOfTax-label" xlink:type="arc"/>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_MutualFundMember" xlink:label="us-gaap_MutualFundMember" xlink:type="locator"/>
    <link:label xlink:label="us-gaap_MutualFundMember-label" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Mutual Fund [Member]</link:label>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_MutualFundMember" xlink:to="us-gaap_MutualFundMember-label" xlink:type="arc"/>
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    <link:label xlink:label="us-gaap_InterestExpense-label" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Interest expense</link:label>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_InterestExpense" xlink:to="us-gaap_InterestExpense-label" xlink:type="arc"/>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_IncreaseDecreaseInOperatingCapitalAbstract" xlink:label="us-gaap_IncreaseDecreaseInOperatingCapitalAbstract" xlink:type="locator"/>
    <link:label xlink:label="us-gaap_IncreaseDecreaseInOperatingCapitalAbstract-label" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Changes in assets and liabilities:</link:label>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_IncreaseDecreaseInOperatingCapitalAbstract" xlink:to="us-gaap_IncreaseDecreaseInOperatingCapitalAbstract-label" xlink:type="arc"/>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_DisclosureTextBlockAbstract" xlink:label="us-gaap_DisclosureTextBlockAbstract" xlink:type="locator"/>
    <link:label xlink:label="us-gaap_DisclosureTextBlockAbstract-label" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">us-gaap_DisclosureTextBlockAbstract</link:label>
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    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_DisclosureTextBlockAbstract" xlink:to="us-gaap_DisclosureTextBlockAbstract-label" xlink:type="arc"/>
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    <link:label xlink:label="us-gaap_SubsequentEventMember-label" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Subsequent Event [Member]</link:label>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_SubsequentEventMember" xlink:to="us-gaap_SubsequentEventMember-label" xlink:type="arc"/>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_ScheduleOfInventoryCurrentTableTextBlock" xlink:label="us-gaap_ScheduleOfInventoryCurrentTableTextBlock" xlink:type="locator"/>
    <link:label xlink:label="us-gaap_ScheduleOfInventoryCurrentTableTextBlock-label" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Schedule of Inventory, Current [Table Text Block]</link:label>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_ScheduleOfInventoryCurrentTableTextBlock" xlink:to="us-gaap_ScheduleOfInventoryCurrentTableTextBlock-label" xlink:type="arc"/>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_SubsequentEventTypeAxis" xlink:label="us-gaap_SubsequentEventTypeAxis" xlink:type="locator"/>
    <link:label xlink:label="us-gaap_SubsequentEventTypeAxis-label" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Subsequent Event Type [Axis]</link:label>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_SubsequentEventTypeAxis" xlink:to="us-gaap_SubsequentEventTypeAxis-label" xlink:type="arc"/>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_SubsequentEventTypeDomain" xlink:label="us-gaap_SubsequentEventTypeDomain" xlink:type="locator"/>
    <link:label xlink:label="us-gaap_SubsequentEventTypeDomain-label" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Subsequent Event Type [Domain]</link:label>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_SubsequentEventTypeDomain" xlink:to="us-gaap_SubsequentEventTypeDomain-label" xlink:type="arc"/>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_PensionAndOtherPostretirementBenefitsDisclosureTextBlock" xlink:label="us-gaap_PensionAndOtherPostretirementBenefitsDisclosureTextBlock" xlink:type="locator"/>
    <link:label xlink:label="us-gaap_PensionAndOtherPostretirementBenefitsDisclosureTextBlock-label" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Pension and Other Postretirement Benefits Disclosure [Text Block]</link:label>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_PensionAndOtherPostretirementBenefitsDisclosureTextBlock" xlink:to="us-gaap_PensionAndOtherPostretirementBenefitsDisclosureTextBlock-label" xlink:type="arc"/>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_SubsequentEventsTextBlock" xlink:label="us-gaap_SubsequentEventsTextBlock" xlink:type="locator"/>
    <link:label xlink:label="us-gaap_SubsequentEventsTextBlock-label" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Subsequent Events [Text Block]</link:label>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_SubsequentEventsTextBlock" xlink:to="us-gaap_SubsequentEventsTextBlock-label" xlink:type="arc"/>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_FairValueMeasurementPolicyPolicyTextBlock" xlink:label="us-gaap_FairValueMeasurementPolicyPolicyTextBlock" xlink:type="locator"/>
    <link:label xlink:label="us-gaap_FairValueMeasurementPolicyPolicyTextBlock-label" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Fair Value Measurement, Policy [Policy Text Block]</link:label>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_FairValueMeasurementPolicyPolicyTextBlock" xlink:to="us-gaap_FairValueMeasurementPolicyPolicyTextBlock-label" xlink:type="arc"/>
    <link:loc xlink:href="aipt-20180630.xsd#aipt_PreferredStockStatedValue" xlink:label="aipt_PreferredStockStatedValue" xlink:type="locator"/>
    <link:label xlink:label="aipt_PreferredStockStatedValue-label" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">aipt_PreferredStockStatedValue</link:label>
    <link:label xlink:label="aipt_PreferredStockStatedValue-label" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Preferred Stock Stated Value</link:label>
    <link:label xlink:label="aipt_PreferredStockStatedValue-label" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">Stated value per share of preferred stock nonredeemable or redeemable solely at the option of the issuer.</link:label>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="aipt_PreferredStockStatedValue" xlink:to="aipt_PreferredStockStatedValue-label" xlink:type="arc"/>
    <link:loc xlink:href="aipt-20180630.xsd#aipt_PreferredStockParValue" xlink:label="aipt_PreferredStockParValue" xlink:type="locator"/>
    <link:label xlink:label="aipt_PreferredStockParValue-label" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">aipt_PreferredStockParValue</link:label>
    <link:label xlink:label="aipt_PreferredStockParValue-label" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Preferred Stock Par Value</link:label>
    <link:label xlink:label="aipt_PreferredStockParValue-label" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">Face amount per share of preferred stock nonredeemable or redeemable solely at the option of the issuer.</link:label>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="aipt_PreferredStockParValue" xlink:to="aipt_PreferredStockParValue-label" xlink:type="arc"/>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_SegmentReportingPolicyPolicyTextBlock" xlink:label="us-gaap_SegmentReportingPolicyPolicyTextBlock" xlink:type="locator"/>
    <link:label xlink:label="us-gaap_SegmentReportingPolicyPolicyTextBlock-label" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Segment Reporting, Policy [Policy Text Block]</link:label>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_SegmentReportingPolicyPolicyTextBlock" xlink:to="us-gaap_SegmentReportingPolicyPolicyTextBlock-label" xlink:type="arc"/>
    <link:loc xlink:href="aipt-20180630.xsd#aipt_SeriesAConvertiblePreferredStockMember" xlink:label="aipt_SeriesAConvertiblePreferredStockMember" xlink:type="locator"/>
    <link:label xlink:label="aipt_SeriesAConvertiblePreferredStockMember-label" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Series A Convertible Preferred Stock [Member]</link:label>
    <link:label xlink:label="aipt_SeriesAConvertiblePreferredStockMember-label" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">Outstanding nonredeemable series A preferred stock that is convertible and may be exchanged into common shares or other types of securities at the owner's option. Classified within stockholders' equity if nonredeemable or redeemable solely at the option of the issuer. Classified within temporary equity if redemption is outside the control of the issuer.</link:label>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="aipt_SeriesAConvertiblePreferredStockMember" xlink:to="aipt_SeriesAConvertiblePreferredStockMember-label" xlink:type="arc"/>
    <link:loc xlink:href="aipt-20180630.xsd#aipt_OperatingAndNonoperatingExpenseTotal" xlink:label="aipt_OperatingAndNonoperatingExpenseTotal" xlink:type="locator"/>
    <link:label xlink:label="aipt_OperatingAndNonoperatingExpenseTotal-label" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">aipt_OperatingAndNonoperatingExpenseTotal</link:label>
    <link:label xlink:label="aipt_OperatingAndNonoperatingExpenseTotal-label" xlink:role="http://www.xbrl.org/2003/role/totalLabel" xlink:type="resource" xml:lang="en-US">Total Expense</link:label>
    <link:label xlink:label="aipt_OperatingAndNonoperatingExpenseTotal-label" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">Recurring costs associated with normal operations except for the portion of these expenses which can be clearly related to production and included in cost of sales or services and the aggregate amount of expense from ancillary business-related activities.</link:label>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="aipt_OperatingAndNonoperatingExpenseTotal" xlink:to="aipt_OperatingAndNonoperatingExpenseTotal-label" xlink:type="arc"/>
    <link:loc xlink:href="aipt-20180630.xsd#aipt_SeriesBConvertiblePreferredStockMember" xlink:label="aipt_SeriesBConvertiblePreferredStockMember" xlink:type="locator"/>
    <link:label xlink:label="aipt_SeriesBConvertiblePreferredStockMember-label" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Series B Convertible Preferred Stock [Member]</link:label>
    <link:label xlink:label="aipt_SeriesBConvertiblePreferredStockMember-label" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">Outstanding nonredeemable series B preferred stock that is convertible and may be exchanged into common shares or other types of securities at the owner's option. Classified within stockholders' equity if nonredeemable or redeemable solely at the option of the issuer. Classified within temporary equity if redemption is outside the control of the issuer.</link:label>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="aipt_SeriesBConvertiblePreferredStockMember" xlink:to="aipt_SeriesBConvertiblePreferredStockMember-label" xlink:type="arc"/>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_AdjustmentOfWarrantsGrantedForServices" xlink:label="us-gaap_AdjustmentOfWarrantsGrantedForServices" xlink:type="locator"/>
    <link:label xlink:label="us-gaap_AdjustmentOfWarrantsGrantedForServices-label" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Issuance of common stock in cashless warrant exchange</link:label>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_AdjustmentOfWarrantsGrantedForServices" xlink:to="us-gaap_AdjustmentOfWarrantsGrantedForServices-label" xlink:type="arc"/>
    <link:loc xlink:href="aipt-20180630.xsd#aipt_StockIssuedDuringPeriodSharesWarrantsExercised" xlink:label="aipt_StockIssuedDuringPeriodSharesWarrantsExercised" xlink:type="locator"/>
    <link:label xlink:label="aipt_StockIssuedDuringPeriodSharesWarrantsExercised-label" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Warrant exercises (in shares)</link:label>
    <link:label xlink:label="aipt_StockIssuedDuringPeriodSharesWarrantsExercised-label" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Stock Issued During Period, Shares, Warrants Exercised</link:label>
    <link:label xlink:label="aipt_StockIssuedDuringPeriodSharesWarrantsExercised-label" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">Number of shares issued as a result of the exercise of warrants.</link:label>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="aipt_StockIssuedDuringPeriodSharesWarrantsExercised" xlink:to="aipt_StockIssuedDuringPeriodSharesWarrantsExercised-label" xlink:type="arc"/>
    <link:loc xlink:href="aipt-20180630.xsd#aipt_StockIssuedDuringPeriodValueWarrantsExercised" xlink:label="aipt_StockIssuedDuringPeriodValueWarrantsExercised" xlink:type="locator"/>
    <link:label xlink:label="aipt_StockIssuedDuringPeriodValueWarrantsExercised-label" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Warrant exercises</link:label>
    <link:label xlink:label="aipt_StockIssuedDuringPeriodValueWarrantsExercised-label" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">Value of stock issued as a result of the exercise of warrants.</link:label>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="aipt_StockIssuedDuringPeriodValueWarrantsExercised" xlink:to="aipt_StockIssuedDuringPeriodValueWarrantsExercised-label" xlink:type="arc"/>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_ShareBasedCompensation" xlink:label="us-gaap_ShareBasedCompensation" xlink:type="locator"/>
    <link:label xlink:label="us-gaap_ShareBasedCompensation-label" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Vested stock options and warrants</link:label>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_ShareBasedCompensation" xlink:to="us-gaap_ShareBasedCompensation-label" xlink:type="arc"/>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_TitleOfIndividualAxis" xlink:label="us-gaap_TitleOfIndividualAxis" xlink:type="locator"/>
    <link:label xlink:label="us-gaap_TitleOfIndividualAxis-label" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Title of Individual [Axis]</link:label>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_TitleOfIndividualAxis" xlink:to="us-gaap_TitleOfIndividualAxis-label" xlink:type="arc"/>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_TitleOfIndividualWithRelationshipToEntityDomain" xlink:label="us-gaap_TitleOfIndividualWithRelationshipToEntityDomain" xlink:type="locator"/>
    <link:label xlink:label="us-gaap_TitleOfIndividualWithRelationshipToEntityDomain-label" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Relationship to Entity [Domain]</link:label>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_TitleOfIndividualWithRelationshipToEntityDomain" xlink:to="us-gaap_TitleOfIndividualWithRelationshipToEntityDomain-label" xlink:type="arc"/>
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    <link:label xlink:label="us-gaap_Revenues-label" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">us-gaap_Revenues</link:label>
    <link:label xlink:label="us-gaap_Revenues-label" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Revenues, Total</link:label>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_Revenues" xlink:to="us-gaap_Revenues-label" xlink:type="arc"/>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_NotesAndLoansReceivableNetNoncurrent" xlink:label="us-gaap_NotesAndLoansReceivableNetNoncurrent" xlink:type="locator"/>
    <link:label xlink:label="us-gaap_NotesAndLoansReceivableNetNoncurrent-label" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">us-gaap_NotesAndLoansReceivableNetNoncurrent</link:label>
    <link:label xlink:label="us-gaap_NotesAndLoansReceivableNetNoncurrent-label" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Notes Receivable</link:label>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_NotesAndLoansReceivableNetNoncurrent" xlink:to="us-gaap_NotesAndLoansReceivableNetNoncurrent-label" xlink:type="arc"/>
    <link:loc xlink:href="aipt-20180630.xsd#aipt_AdvanceToHelomicsMember" xlink:label="aipt_AdvanceToHelomicsMember" xlink:type="locator"/>
    <link:label xlink:label="aipt_AdvanceToHelomicsMember-label" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Advance to Helomics [Member]</link:label>
    <link:label xlink:label="aipt_AdvanceToHelomicsMember-label" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">Represents the advance to Helomics for its business in contemplation of the proposed joint venture.</link:label>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="aipt_AdvanceToHelomicsMember" xlink:to="aipt_AdvanceToHelomicsMember-label" xlink:type="arc"/>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_IncomeTaxPolicyTextBlock" xlink:label="us-gaap_IncomeTaxPolicyTextBlock" xlink:type="locator"/>
    <link:label xlink:label="us-gaap_IncomeTaxPolicyTextBlock-label" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Income Tax, Policy [Policy Text Block]</link:label>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_IncomeTaxPolicyTextBlock" xlink:to="us-gaap_IncomeTaxPolicyTextBlock-label" xlink:type="arc"/>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_ResearchAndDevelopmentExpensePolicy" xlink:label="us-gaap_ResearchAndDevelopmentExpensePolicy" xlink:type="locator"/>
    <link:label xlink:label="us-gaap_ResearchAndDevelopmentExpensePolicy-label" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Research and Development Expense, Policy [Policy Text Block]</link:label>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_ResearchAndDevelopmentExpensePolicy" xlink:to="us-gaap_ResearchAndDevelopmentExpensePolicy-label" xlink:type="arc"/>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_ConversionOfStockAmountConverted1" xlink:label="us-gaap_ConversionOfStockAmountConverted1" xlink:type="locator"/>
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    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_ConversionOfStockAmountConverted1" xlink:to="us-gaap_ConversionOfStockAmountConverted1-label" xlink:type="arc"/>
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    <link:label xlink:label="us-gaap_StockholdersEquityNoteStockSplitConversionRatio1-label" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">us-gaap_StockholdersEquityNoteStockSplitConversionRatio1</link:label>
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    <link:label xlink:label="us-gaap_DepreciationDepletionAndAmortization-label" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Depreciation and amortization</link:label>
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    <link:label xlink:label="us-gaap_SharesIssuedPricePerShare-label" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Price of shares issued (in dollars per share)</link:label>
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    <link:label xlink:label="us-gaap_ConversionOfStockByUniqueDescriptionAxis-label" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Stock Conversion Description [Axis]</link:label>
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    <link:label xlink:label="us-gaap_ConversionOfStockNameDomain-label" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Conversion of Stock, Name [Domain]</link:label>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_ConversionOfStockNameDomain" xlink:to="us-gaap_ConversionOfStockNameDomain-label" xlink:type="arc"/>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_AssetsCurrent" xlink:label="us-gaap_AssetsCurrent" xlink:type="locator"/>
    <link:label xlink:label="us-gaap_AssetsCurrent-label" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">us-gaap_AssetsCurrent</link:label>
    <link:label xlink:label="us-gaap_AssetsCurrent-label" xlink:role="http://www.xbrl.org/2003/role/totalLabel" xlink:type="resource" xml:lang="en-US">Total Current Assets</link:label>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_AssetsCurrent" xlink:to="us-gaap_AssetsCurrent-label" xlink:type="arc"/>
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    <link:label xlink:label="us-gaap_StockholdersEquityNoteDisclosureTextBlock-label" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Stockholders' Equity Note Disclosure [Text Block]</link:label>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_StockholdersEquityNoteDisclosureTextBlock" xlink:to="us-gaap_StockholdersEquityNoteDisclosureTextBlock-label" xlink:type="arc"/>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_AdvertisingCostsPolicyTextBlock" xlink:label="us-gaap_AdvertisingCostsPolicyTextBlock" xlink:type="locator"/>
    <link:label xlink:label="us-gaap_AdvertisingCostsPolicyTextBlock-label" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Advertising Costs, Policy [Policy Text Block]</link:label>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_AdvertisingCostsPolicyTextBlock" xlink:to="us-gaap_AdvertisingCostsPolicyTextBlock-label" xlink:type="arc"/>
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    <link:label xlink:label="us-gaap_CommonStockValue-label" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Common Stock, $.01 par value, 50,000,000 authorized, 6,943,283 and 4,564,428 outstanding</link:label>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_CommonStockValue" xlink:to="us-gaap_CommonStockValue-label" xlink:type="arc"/>
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    <link:label xlink:label="us-gaap_CommonStockSharesAuthorized-label" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Common stock, shares authorized (in shares)</link:label>
    <link:label xlink:label="us-gaap_CommonStockSharesAuthorized-label" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Common Stock, Shares Authorized</link:label>
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    <link:label xlink:label="us-gaap_CommonStockSharesIssued-label" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">us-gaap_CommonStockSharesIssued</link:label>
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    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_CommonStockSharesIssued" xlink:to="us-gaap_CommonStockSharesIssued-label" xlink:type="arc"/>
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    <link:label xlink:label="us-gaap_CommonStockParOrStatedValuePerShare-label" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Common stock, par value (in dollars per share)</link:label>
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    <link:label xlink:label="us-gaap_StandardProductWarrantyPolicy-label" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Standard Product Warranty, Policy [Policy Text Block]</link:label>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_StandardProductWarrantyPolicy" xlink:to="us-gaap_StandardProductWarrantyPolicy-label" xlink:type="arc"/>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_DeferredTaxAssetsValuationAllowance" xlink:label="us-gaap_DeferredTaxAssetsValuationAllowance" xlink:type="locator"/>
    <link:label xlink:label="us-gaap_DeferredTaxAssetsValuationAllowance-label" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Less Valuation Allowance</link:label>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_DeferredTaxAssetsValuationAllowance" xlink:to="us-gaap_DeferredTaxAssetsValuationAllowance-label" xlink:type="arc"/>
    <link:loc xlink:href="http://xbrl.fasb.org/srt/2018/elts/srt-2018-01-31.xsd#srt_RangeMember" xlink:label="srt_RangeMember" xlink:type="locator"/>
    <link:label xlink:label="srt_RangeMember-label" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Range [Domain]</link:label>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="srt_RangeMember" xlink:to="srt_RangeMember-label" xlink:type="arc"/>
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    <link:label xlink:label="srt_MaximumMember-label" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Maximum [Member]</link:label>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="srt_MaximumMember" xlink:to="srt_MaximumMember-label" xlink:type="arc"/>
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    <link:label xlink:label="srt_MinimumMember-label" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Minimum [Member]</link:label>
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    <link:label xlink:label="srt_RangeAxis-label" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Range [Axis]</link:label>
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    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_GoodwillAndIntangibleAssetsIntangibleAssetsIndefiniteLivedPolicy" xlink:to="us-gaap_GoodwillAndIntangibleAssetsIntangibleAssetsIndefiniteLivedPolicy-label" xlink:type="arc"/>
    <link:loc xlink:href="http://xbrl.fasb.org/srt/2018/elts/srt-2018-01-31.xsd#srt_EquityMethodInvesteeNameDomain" xlink:label="srt_EquityMethodInvesteeNameDomain" xlink:type="locator"/>
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    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="srt_EquityMethodInvesteeNameDomain" xlink:to="srt_EquityMethodInvesteeNameDomain-label" xlink:type="arc"/>
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    <link:label xlink:label="us-gaap_PreferredStockValue-label" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Preferred stock</link:label>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_PreferredStockValue" xlink:to="us-gaap_PreferredStockValue-label" xlink:type="arc"/>
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    <link:label xlink:label="us-gaap_DeferredTaxAssetsLiabilitiesNet-label" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">us-gaap_DeferredTaxAssetsLiabilitiesNet</link:label>
    <link:label xlink:label="us-gaap_DeferredTaxAssetsLiabilitiesNet-label" xlink:role="http://www.xbrl.org/2003/role/totalLabel" xlink:type="resource" xml:lang="en-US">Net Deferred Income Taxes</link:label>
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    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_GoodwillAndIntangibleAssetsIntangibleAssetsPolicy" xlink:label="us-gaap_GoodwillAndIntangibleAssetsIntangibleAssetsPolicy" xlink:type="locator"/>
    <link:label xlink:label="us-gaap_GoodwillAndIntangibleAssetsIntangibleAssetsPolicy-label" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Goodwill and Intangible Assets, Intangible Assets, Policy [Policy Text Block]</link:label>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_GoodwillAndIntangibleAssetsIntangibleAssetsPolicy" xlink:to="us-gaap_GoodwillAndIntangibleAssetsIntangibleAssetsPolicy-label" xlink:type="arc"/>
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    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_IntangibleAssetsFiniteLivedPolicy" xlink:to="us-gaap_IntangibleAssetsFiniteLivedPolicy-label" xlink:type="arc"/>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_InterestPaidNet" xlink:label="us-gaap_InterestPaidNet" xlink:type="locator"/>
    <link:label xlink:label="us-gaap_InterestPaidNet-label" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">us-gaap_InterestPaidNet</link:label>
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    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_InterestPaidNet" xlink:to="us-gaap_InterestPaidNet-label" xlink:type="arc"/>
    <link:loc xlink:href="http://xbrl.fasb.org/srt/2018/elts/srt-2018-01-31.xsd#srt_ScheduleOfEquityMethodInvestmentEquityMethodInvesteeNameAxis" xlink:label="srt_ScheduleOfEquityMethodInvestmentEquityMethodInvesteeNameAxis" xlink:type="locator"/>
    <link:label xlink:label="srt_ScheduleOfEquityMethodInvestmentEquityMethodInvesteeNameAxis-label" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Investment, Name [Axis]</link:label>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="srt_ScheduleOfEquityMethodInvestmentEquityMethodInvesteeNameAxis" xlink:to="srt_ScheduleOfEquityMethodInvestmentEquityMethodInvesteeNameAxis-label" xlink:type="arc"/>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_CashFlowSupplementalDisclosuresTextBlock" xlink:label="us-gaap_CashFlowSupplementalDisclosuresTextBlock" xlink:type="locator"/>
    <link:label xlink:label="us-gaap_CashFlowSupplementalDisclosuresTextBlock-label" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Cash Flow, Supplemental Disclosures [Text Block]</link:label>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_CashFlowSupplementalDisclosuresTextBlock" xlink:to="us-gaap_CashFlowSupplementalDisclosuresTextBlock-label" xlink:type="arc"/>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_DeferredTaxAssetsOther" xlink:label="us-gaap_DeferredTaxAssetsOther" xlink:type="locator"/>
    <link:label xlink:label="us-gaap_DeferredTaxAssetsOther-label" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Other</link:label>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_DeferredTaxAssetsOther" xlink:to="us-gaap_DeferredTaxAssetsOther-label" xlink:type="arc"/>
    <link:loc xlink:href="http://xbrl.fasb.org/srt/2018/elts/srt-2018-01-31.xsd#srt_StatementGeographicalAxis" xlink:label="srt_StatementGeographicalAxis" xlink:type="locator"/>
    <link:label xlink:label="srt_StatementGeographicalAxis-label" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Geographical [Axis]</link:label>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="srt_StatementGeographicalAxis" xlink:to="srt_StatementGeographicalAxis-label" xlink:type="arc"/>
    <link:loc xlink:href="aipt-20180630.xsd#aipt_InvestmentOwnershipPercent" xlink:label="aipt_InvestmentOwnershipPercent" xlink:type="locator"/>
    <link:label xlink:label="aipt_InvestmentOwnershipPercent-label" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">aipt_InvestmentOwnershipPercent</link:label>
    <link:label xlink:label="aipt_InvestmentOwnershipPercent-label" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Investment, Ownership Percent</link:label>
    <link:label xlink:label="aipt_InvestmentOwnershipPercent-label" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">Represents the percent of ownership in investment interest.</link:label>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="aipt_InvestmentOwnershipPercent" xlink:to="aipt_InvestmentOwnershipPercent-label" xlink:type="arc"/>
    <link:loc xlink:href="aipt-20180630.xsd#aipt_OfferingCostsPolicyTextBlock" xlink:label="aipt_OfferingCostsPolicyTextBlock" xlink:type="locator"/>
    <link:label xlink:label="aipt_OfferingCostsPolicyTextBlock-label" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Offering Costs [Policy Text Block]</link:label>
    <link:label xlink:label="aipt_OfferingCostsPolicyTextBlock-label" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">The accounting policy of offering costs related to securities financing transactions.</link:label>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="aipt_OfferingCostsPolicyTextBlock" xlink:to="aipt_OfferingCostsPolicyTextBlock-label" xlink:type="arc"/>
    <link:loc xlink:href="http://xbrl.fasb.org/srt/2018/elts/srt-2018-01-31.xsd#srt_SegmentGeographicalDomain" xlink:label="srt_SegmentGeographicalDomain" xlink:type="locator"/>
    <link:label xlink:label="srt_SegmentGeographicalDomain-label" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Geographical [Domain]</link:label>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="srt_SegmentGeographicalDomain" xlink:to="srt_SegmentGeographicalDomain-label" xlink:type="arc"/>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_PropertyPlantAndEquipmentTextBlock" xlink:label="us-gaap_PropertyPlantAndEquipmentTextBlock" xlink:type="locator"/>
    <link:label xlink:label="us-gaap_PropertyPlantAndEquipmentTextBlock-label" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Property, Plant and Equipment [Table Text Block]</link:label>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_PropertyPlantAndEquipmentTextBlock" xlink:to="us-gaap_PropertyPlantAndEquipmentTextBlock-label" xlink:type="arc"/>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_DeferredTaxAssetsGross" xlink:label="us-gaap_DeferredTaxAssetsGross" xlink:type="locator"/>
    <link:label xlink:label="us-gaap_DeferredTaxAssetsGross-label" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Total Deferred Tax Asset</link:label>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_DeferredTaxAssetsGross" xlink:to="us-gaap_DeferredTaxAssetsGross-label" xlink:type="arc"/>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_PreferredStockSharesAuthorized" xlink:label="us-gaap_PreferredStockSharesAuthorized" xlink:type="locator"/>
    <link:label xlink:label="us-gaap_PreferredStockSharesAuthorized-label" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Preferred stock, shares authorized (in shares)</link:label>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_PreferredStockSharesAuthorized" xlink:to="us-gaap_PreferredStockSharesAuthorized-label" xlink:type="arc"/>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_InventoryNet" xlink:label="us-gaap_InventoryNet" xlink:type="locator"/>
    <link:label xlink:label="us-gaap_InventoryNet-label" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">us-gaap_InventoryNet</link:label>
    <link:label xlink:label="us-gaap_InventoryNet-label" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Inventories</link:label>
    <link:label xlink:label="us-gaap_InventoryNet-label" xlink:role="http://www.xbrl.org/2003/role/totalLabel" xlink:type="resource" xml:lang="en-US">Total</link:label>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_InventoryNet" xlink:to="us-gaap_InventoryNet-label" xlink:type="arc"/>
    <link:loc xlink:href="aipt-20180630.xsd#aipt_ConversionFromSeriesCConvertiblePreferredStockToCommonStockMember" xlink:label="aipt_ConversionFromSeriesCConvertiblePreferredStockToCommonStockMember" xlink:type="locator"/>
    <link:label xlink:label="aipt_ConversionFromSeriesCConvertiblePreferredStockToCommonStockMember-label" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Conversion from Series C Convertible Preferred Stock to Common Stock [Member]</link:label>
    <link:label xlink:label="aipt_ConversionFromSeriesCConvertiblePreferredStockToCommonStockMember-label" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">Represents the conversion from Series C Convertible Preferred Stock to Common Stock.</link:label>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="aipt_ConversionFromSeriesCConvertiblePreferredStockToCommonStockMember" xlink:to="aipt_ConversionFromSeriesCConvertiblePreferredStockToCommonStockMember-label" xlink:type="arc"/>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_PreferredStockParOrStatedValuePerShare" xlink:label="us-gaap_PreferredStockParOrStatedValuePerShare" xlink:type="locator"/>
    <link:label xlink:label="us-gaap_PreferredStockParOrStatedValuePerShare-label" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Preferred stock, par value (in dollars per share)</link:label>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_PreferredStockParOrStatedValuePerShare" xlink:to="us-gaap_PreferredStockParOrStatedValuePerShare-label" xlink:type="arc"/>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_ConvertiblePreferredStockSharesIssuedUponConversion" xlink:label="us-gaap_ConvertiblePreferredStockSharesIssuedUponConversion" xlink:type="locator"/>
    <link:label xlink:label="us-gaap_ConvertiblePreferredStockSharesIssuedUponConversion-label" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">us-gaap_ConvertiblePreferredStockSharesIssuedUponConversion</link:label>
    <link:label xlink:label="us-gaap_ConvertiblePreferredStockSharesIssuedUponConversion-label" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Convertible Preferred Stock, Shares Issued upon Conversion</link:label>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_ConvertiblePreferredStockSharesIssuedUponConversion" xlink:to="us-gaap_ConvertiblePreferredStockSharesIssuedUponConversion-label" xlink:type="arc"/>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_RevenueFromContractWithCustomerIncludingAssessedTax" xlink:label="us-gaap_RevenueFromContractWithCustomerIncludingAssessedTax" xlink:type="locator"/>
    <link:label xlink:label="us-gaap_RevenueFromContractWithCustomerIncludingAssessedTax-label" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Revenue</link:label>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_RevenueFromContractWithCustomerIncludingAssessedTax" xlink:to="us-gaap_RevenueFromContractWithCustomerIncludingAssessedTax-label" xlink:type="arc"/>
    <link:loc xlink:href="aipt-20180630.xsd#aipt_StockIssuedDuringPeriodValuePreferredStockConversion" xlink:label="aipt_StockIssuedDuringPeriodValuePreferredStockConversion" xlink:type="locator"/>
    <link:label xlink:label="aipt_StockIssuedDuringPeriodValuePreferredStockConversion-label" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Shares issued for preferred stock conversion into common stock per the break-up of the Unit from the 2015 public offering</link:label>
    <link:label xlink:label="aipt_StockIssuedDuringPeriodValuePreferredStockConversion-label" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">The gross value of stock issued during the period upon the conversion of preferred stock.</link:label>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="aipt_StockIssuedDuringPeriodValuePreferredStockConversion" xlink:to="aipt_StockIssuedDuringPeriodValuePreferredStockConversion-label" xlink:type="arc"/>
    <link:loc xlink:href="aipt-20180630.xsd#aipt_StockIssuedDuringPeriodSharesPreferredStockConversion" xlink:label="aipt_StockIssuedDuringPeriodSharesPreferredStockConversion" xlink:type="locator"/>
    <link:label xlink:label="aipt_StockIssuedDuringPeriodSharesPreferredStockConversion-label" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Shares issued for preferred stock conversion into common stock per the break-up of the Unit from the 2015 public offering (in shares)</link:label>
    <link:label xlink:label="aipt_StockIssuedDuringPeriodSharesPreferredStockConversion-label" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">Number of shares issued during the period as a result of the conversion of preferred stock.</link:label>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="aipt_StockIssuedDuringPeriodSharesPreferredStockConversion" xlink:to="aipt_StockIssuedDuringPeriodSharesPreferredStockConversion-label" xlink:type="arc"/>
    <link:loc xlink:href="aipt-20180630.xsd#aipt_WarrantFourteenMember" xlink:label="aipt_WarrantFourteenMember" xlink:type="locator"/>
    <link:label xlink:label="aipt_WarrantFourteenMember-label" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Warrant Fourteen [Member]</link:label>
    <link:label xlink:label="aipt_WarrantFourteenMember-label" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">Represents warrant fourteen.</link:label>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="aipt_WarrantFourteenMember" xlink:to="aipt_WarrantFourteenMember-label" xlink:type="arc"/>
    <link:loc xlink:href="aipt-20180630.xsd#aipt_Warrants2017Member" xlink:label="aipt_Warrants2017Member" xlink:type="locator"/>
    <link:label xlink:label="aipt_Warrants2017Member-label" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Warrants 2017 [Member]</link:label>
    <link:label xlink:label="aipt_Warrants2017Member-label" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">Represents warrants 2017.</link:label>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="aipt_Warrants2017Member" xlink:to="aipt_Warrants2017Member-label" xlink:type="arc"/>
    <link:loc xlink:href="aipt-20180630.xsd#aipt_RisksAndUncertaintiesPolicyPolicyTextBlock" xlink:label="aipt_RisksAndUncertaintiesPolicyPolicyTextBlock" xlink:type="locator"/>
    <link:label xlink:label="aipt_RisksAndUncertaintiesPolicyPolicyTextBlock-label" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Risks and Uncertainties Policy [Policy Text Block]</link:label>
    <link:label xlink:label="aipt_RisksAndUncertaintiesPolicyPolicyTextBlock-label" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">Disclosure of accounting policy for risks and uncertainties common to companies in the medical device industry.</link:label>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="aipt_RisksAndUncertaintiesPolicyPolicyTextBlock" xlink:to="aipt_RisksAndUncertaintiesPolicyPolicyTextBlock-label" xlink:type="arc"/>
    <link:loc xlink:href="aipt-20180630.xsd#aipt_ConsultingAgreementOneMember" xlink:label="aipt_ConsultingAgreementOneMember" xlink:type="locator"/>
    <link:label xlink:label="aipt_ConsultingAgreementOneMember-label" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Consulting Agreement One [Member]</link:label>
    <link:label xlink:label="aipt_ConsultingAgreementOneMember-label" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">Represents information pertaining to the first consulting agreement mentioned in a financial statement or in a note thereto.</link:label>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="aipt_ConsultingAgreementOneMember" xlink:to="aipt_ConsultingAgreementOneMember-label" xlink:type="arc"/>
    <link:loc xlink:href="aipt-20180630.xsd#aipt_StockOptions2017Member" xlink:label="aipt_StockOptions2017Member" xlink:type="locator"/>
    <link:label xlink:label="aipt_StockOptions2017Member-label" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Stock Options 2017 [Member]</link:label>
    <link:label xlink:label="aipt_StockOptions2017Member-label" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">Represents the stock options in 2017.</link:label>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="aipt_StockOptions2017Member" xlink:to="aipt_StockOptions2017Member-label" xlink:type="arc"/>
    <link:loc xlink:href="aipt-20180630.xsd#aipt_PresentationOfTaxesCollectedFromCustomersPolicyPolicyTextBlock" xlink:label="aipt_PresentationOfTaxesCollectedFromCustomersPolicyPolicyTextBlock" xlink:type="locator"/>
    <link:label xlink:label="aipt_PresentationOfTaxesCollectedFromCustomersPolicyPolicyTextBlock-label" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Presentation of Taxes Collected From Customers, Policy [Policy Text Block]</link:label>
    <link:label xlink:label="aipt_PresentationOfTaxesCollectedFromCustomersPolicyPolicyTextBlock-label" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">Disclosure of accounting policy for presentation of taxes collected from customers.</link:label>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="aipt_PresentationOfTaxesCollectedFromCustomersPolicyPolicyTextBlock" xlink:to="aipt_PresentationOfTaxesCollectedFromCustomersPolicyPolicyTextBlock-label" xlink:type="arc"/>
    <link:loc xlink:href="aipt-20180630.xsd#aipt_StockExpectedToBeIssuedUponAgreementSharesTrancheOne" xlink:label="aipt_StockExpectedToBeIssuedUponAgreementSharesTrancheOne" xlink:type="locator"/>
    <link:label xlink:label="aipt_StockExpectedToBeIssuedUponAgreementSharesTrancheOne-label" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">aipt_StockExpectedToBeIssuedUponAgreementSharesTrancheOne</link:label>
    <link:label xlink:label="aipt_StockExpectedToBeIssuedUponAgreementSharesTrancheOne-label" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Stock Expected to be Issued Upon Agreement, Shares, Tranche One</link:label>
    <link:label xlink:label="aipt_StockExpectedToBeIssuedUponAgreementSharesTrancheOne-label" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">Number of stock expected to be issued upon the agreement representing tranche one during the period.</link:label>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="aipt_StockExpectedToBeIssuedUponAgreementSharesTrancheOne" xlink:to="aipt_StockExpectedToBeIssuedUponAgreementSharesTrancheOne-label" xlink:type="arc"/>
    <link:loc xlink:href="aipt-20180630.xsd#aipt_CertificatesOfDepositPolicyPolicyTextBlock" xlink:label="aipt_CertificatesOfDepositPolicyPolicyTextBlock" xlink:type="locator"/>
    <link:label xlink:label="aipt_CertificatesOfDepositPolicyPolicyTextBlock-label" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Certificates of Deposit Policy [Policy Text Block]</link:label>
    <link:label xlink:label="aipt_CertificatesOfDepositPolicyPolicyTextBlock-label" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">Disclosure of accounting policy for certificates of deposit common to companies in the medical device industry.</link:label>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="aipt_CertificatesOfDepositPolicyPolicyTextBlock" xlink:to="aipt_CertificatesOfDepositPolicyPolicyTextBlock-label" xlink:type="arc"/>
    <link:loc xlink:href="aipt-20180630.xsd#aipt_StockExpectedToBeIssuedUponAgreementSharesTrancheTwo" xlink:label="aipt_StockExpectedToBeIssuedUponAgreementSharesTrancheTwo" xlink:type="locator"/>
    <link:label xlink:label="aipt_StockExpectedToBeIssuedUponAgreementSharesTrancheTwo-label" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">aipt_StockExpectedToBeIssuedUponAgreementSharesTrancheTwo</link:label>
    <link:label xlink:label="aipt_StockExpectedToBeIssuedUponAgreementSharesTrancheTwo-label" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Stock Expected to be Issued Upon Agreement, Shares, Tranche Two</link:label>
    <link:label xlink:label="aipt_StockExpectedToBeIssuedUponAgreementSharesTrancheTwo-label" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">Number of stock expected to be issued upon the agreement representing tranche two during the period.</link:label>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="aipt_StockExpectedToBeIssuedUponAgreementSharesTrancheTwo" xlink:to="aipt_StockExpectedToBeIssuedUponAgreementSharesTrancheTwo-label" xlink:type="arc"/>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_PropertyPlantAndEquipmentUsefulLife" xlink:label="us-gaap_PropertyPlantAndEquipmentUsefulLife" xlink:type="locator"/>
    <link:label xlink:label="us-gaap_PropertyPlantAndEquipmentUsefulLife-label" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:type="resource" xml:lang="en-US">Property, plant, and equipment, useful life (Year)</link:label>
    <link:label xlink:label="us-gaap_PropertyPlantAndEquipmentUsefulLife-label" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">us-gaap_PropertyPlantAndEquipmentUsefulLife</link:label>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_PropertyPlantAndEquipmentUsefulLife" xlink:to="us-gaap_PropertyPlantAndEquipmentUsefulLife-label" xlink:type="arc"/>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_IncreaseDecreaseInDeferredRevenue" xlink:label="us-gaap_IncreaseDecreaseInDeferredRevenue" xlink:type="locator"/>
    <link:label xlink:label="us-gaap_IncreaseDecreaseInDeferredRevenue-label" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">us-gaap_IncreaseDecreaseInDeferredRevenue</link:label>
    <link:label xlink:label="us-gaap_IncreaseDecreaseInDeferredRevenue-label" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Deferred revenue</link:label>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_IncreaseDecreaseInDeferredRevenue" xlink:to="us-gaap_IncreaseDecreaseInDeferredRevenue-label" xlink:type="arc"/>
    <link:loc xlink:href="aipt-20180630.xsd#aipt_ConsultingAgreementTwoMember" xlink:label="aipt_ConsultingAgreementTwoMember" xlink:type="locator"/>
    <link:label xlink:label="aipt_ConsultingAgreementTwoMember-label" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Consulting Agreement Two [Member]</link:label>
    <link:label xlink:label="aipt_ConsultingAgreementTwoMember-label" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">Represents information pertaining to the second consulting agreement mentioned in a financial statement or a note thereto.</link:label>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="aipt_ConsultingAgreementTwoMember" xlink:to="aipt_ConsultingAgreementTwoMember-label" xlink:type="arc"/>
    <link:loc xlink:href="aipt-20180630.xsd#aipt_StockExpectedToBeIssuedUponAgreementShares" xlink:label="aipt_StockExpectedToBeIssuedUponAgreementShares" xlink:type="locator"/>
    <link:label xlink:label="aipt_StockExpectedToBeIssuedUponAgreementShares-label" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">aipt_StockExpectedToBeIssuedUponAgreementShares</link:label>
    <link:label xlink:label="aipt_StockExpectedToBeIssuedUponAgreementShares-label" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Stock Expected to be Issued Upon Agreement, Shares</link:label>
    <link:label xlink:label="aipt_StockExpectedToBeIssuedUponAgreementShares-label" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">Number of stock expected to be issued upon the agreement during the period.</link:label>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="aipt_StockExpectedToBeIssuedUponAgreementShares" xlink:to="aipt_StockExpectedToBeIssuedUponAgreementShares-label" xlink:type="arc"/>
    <link:loc xlink:href="aipt-20180630.xsd#aipt_StockExpectedToBeIssuedUponAgreementSharesTrancheThree" xlink:label="aipt_StockExpectedToBeIssuedUponAgreementSharesTrancheThree" xlink:type="locator"/>
    <link:label xlink:label="aipt_StockExpectedToBeIssuedUponAgreementSharesTrancheThree-label" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">aipt_StockExpectedToBeIssuedUponAgreementSharesTrancheThree</link:label>
    <link:label xlink:label="aipt_StockExpectedToBeIssuedUponAgreementSharesTrancheThree-label" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Stock Expected to be Issued Upon Agreement, Shares, Tranche Three</link:label>
    <link:label xlink:label="aipt_StockExpectedToBeIssuedUponAgreementSharesTrancheThree-label" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">Number of stock expected to be issued upon the agreement representing tranche three during the period.</link:label>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="aipt_StockExpectedToBeIssuedUponAgreementSharesTrancheThree" xlink:to="aipt_StockExpectedToBeIssuedUponAgreementSharesTrancheThree-label" xlink:type="arc"/>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_NetCashProvidedByUsedInOperatingActivitiesAbstract" xlink:label="us-gaap_NetCashProvidedByUsedInOperatingActivitiesAbstract" xlink:type="locator"/>
    <link:label xlink:label="us-gaap_NetCashProvidedByUsedInOperatingActivitiesAbstract-label" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Cash flow from operating activities:</link:label>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_NetCashProvidedByUsedInOperatingActivitiesAbstract" xlink:to="us-gaap_NetCashProvidedByUsedInOperatingActivitiesAbstract-label" xlink:type="arc"/>
    <link:loc xlink:href="aipt-20180630.xsd#aipt_StockExpectedToBeIssuedUponAgreementSharesTrancheFour" xlink:label="aipt_StockExpectedToBeIssuedUponAgreementSharesTrancheFour" xlink:type="locator"/>
    <link:label xlink:label="aipt_StockExpectedToBeIssuedUponAgreementSharesTrancheFour-label" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">aipt_StockExpectedToBeIssuedUponAgreementSharesTrancheFour</link:label>
    <link:label xlink:label="aipt_StockExpectedToBeIssuedUponAgreementSharesTrancheFour-label" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Stock Expected to be Issued Upon Agreement, Shares, Tranche Four</link:label>
    <link:label xlink:label="aipt_StockExpectedToBeIssuedUponAgreementSharesTrancheFour-label" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">Number of stock expected to be issued upon the agreement representing tranche four during the period.</link:label>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="aipt_StockExpectedToBeIssuedUponAgreementSharesTrancheFour" xlink:to="aipt_StockExpectedToBeIssuedUponAgreementSharesTrancheFour-label" xlink:type="arc"/>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_NotesAndLoansReceivableNetCurrent" xlink:label="us-gaap_NotesAndLoansReceivableNetCurrent" xlink:type="locator"/>
    <link:label xlink:label="us-gaap_NotesAndLoansReceivableNetCurrent-label" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Notes Receivable</link:label>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_NotesAndLoansReceivableNetCurrent" xlink:to="us-gaap_NotesAndLoansReceivableNetCurrent-label" xlink:type="arc"/>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_RevenueRecognitionPolicyTextBlock" xlink:label="us-gaap_RevenueRecognitionPolicyTextBlock" xlink:type="locator"/>
    <link:label xlink:label="us-gaap_RevenueRecognitionPolicyTextBlock-label" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Revenue Recognition, Policy [Policy Text Block]</link:label>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_RevenueRecognitionPolicyTextBlock" xlink:to="us-gaap_RevenueRecognitionPolicyTextBlock-label" xlink:type="arc"/>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_StatementLineItems" xlink:label="us-gaap_StatementLineItems" xlink:type="locator"/>
    <link:label xlink:label="us-gaap_StatementLineItems-label" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Statement [Line Items]</link:label>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_StatementLineItems" xlink:to="us-gaap_StatementLineItems-label" xlink:type="arc"/>
    <link:loc xlink:href="aipt-20180630.xsd#aipt_WarrantsOptionToSettleInCashFairValueDisclosure" xlink:label="aipt_WarrantsOptionToSettleInCashFairValueDisclosure" xlink:type="locator"/>
    <link:label xlink:label="aipt_WarrantsOptionToSettleInCashFairValueDisclosure-label" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">aipt_WarrantsOptionToSettleInCashFairValueDisclosure</link:label>
    <link:label xlink:label="aipt_WarrantsOptionToSettleInCashFairValueDisclosure-label" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Warrants Option to Settle in Cash Fair Value Disclosure</link:label>
    <link:label xlink:label="aipt_WarrantsOptionToSettleInCashFairValueDisclosure-label" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">Fair value portion of warrants option to settle in cash classified as equity per warrant.</link:label>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="aipt_WarrantsOptionToSettleInCashFairValueDisclosure" xlink:to="aipt_WarrantsOptionToSettleInCashFairValueDisclosure-label" xlink:type="arc"/>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_NumberOfOperatingSegments" xlink:label="us-gaap_NumberOfOperatingSegments" xlink:type="locator"/>
    <link:label xlink:label="us-gaap_NumberOfOperatingSegments-label" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">us-gaap_NumberOfOperatingSegments</link:label>
    <link:label xlink:label="us-gaap_NumberOfOperatingSegments-label" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Number of Operating Segments</link:label>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_NumberOfOperatingSegments" xlink:to="us-gaap_NumberOfOperatingSegments-label" xlink:type="arc"/>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_AccountsReceivableNetCurrent" xlink:label="us-gaap_AccountsReceivableNetCurrent" xlink:type="locator"/>
    <link:label xlink:label="us-gaap_AccountsReceivableNetCurrent-label" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Accounts Receivable</link:label>
    <link:label xlink:label="us-gaap_AccountsReceivableNetCurrent-label" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Accounts Receivable, Net, Current, Total</link:label>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_AccountsReceivableNetCurrent" xlink:to="us-gaap_AccountsReceivableNetCurrent-label" xlink:type="arc"/>
    <link:loc xlink:href="aipt-20180630.xsd#aipt_ClassOfWarrantOrRightExercisedDuringPeriod" xlink:label="aipt_ClassOfWarrantOrRightExercisedDuringPeriod" xlink:type="locator"/>
    <link:label xlink:label="aipt_ClassOfWarrantOrRightExercisedDuringPeriod-label" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">aipt_ClassOfWarrantOrRightExercisedDuringPeriod</link:label>
    <link:label xlink:label="aipt_ClassOfWarrantOrRightExercisedDuringPeriod-label" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Class of Warrant or Right Exercised During Period</link:label>
    <link:label xlink:label="aipt_ClassOfWarrantOrRightExercisedDuringPeriod-label" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">The number of warrants or rights exercised during period.</link:label>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="aipt_ClassOfWarrantOrRightExercisedDuringPeriod" xlink:to="aipt_ClassOfWarrantOrRightExercisedDuringPeriod-label" xlink:type="arc"/>
    <link:loc xlink:href="aipt-20180630.xsd#aipt_ScenarioAllOutstandingWarrantsExercisedAtMinimumBidPriceMember" xlink:label="aipt_ScenarioAllOutstandingWarrantsExercisedAtMinimumBidPriceMember" xlink:type="locator"/>
    <link:label xlink:label="aipt_ScenarioAllOutstandingWarrantsExercisedAtMinimumBidPriceMember-label" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Scenario, All Outstanding Warrants Exercised at Minimum Bid Price [Member]</link:label>
    <link:label xlink:label="aipt_ScenarioAllOutstandingWarrantsExercisedAtMinimumBidPriceMember-label" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">Represents all outstanding warrants exercised at minimum bid price.</link:label>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="aipt_ScenarioAllOutstandingWarrantsExercisedAtMinimumBidPriceMember" xlink:to="aipt_ScenarioAllOutstandingWarrantsExercisedAtMinimumBidPriceMember-label" xlink:type="arc"/>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_AdditionalPaidInCapital" xlink:label="us-gaap_AdditionalPaidInCapital" xlink:type="locator"/>
    <link:label xlink:label="us-gaap_AdditionalPaidInCapital-label" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">us-gaap_AdditionalPaidInCapital</link:label>
    <link:label xlink:label="us-gaap_AdditionalPaidInCapital-label" xlink:role="http://www.xbrl.org/2009/role/negatedLabel" xlink:type="resource" xml:lang="en-US">Additional paid-in capital</link:label>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_AdditionalPaidInCapital" xlink:to="us-gaap_AdditionalPaidInCapital-label" xlink:type="arc"/>
    <link:loc xlink:href="aipt-20180630.xsd#aipt_UnitPurchaseOptionExercisePrice" xlink:label="aipt_UnitPurchaseOptionExercisePrice" xlink:type="locator"/>
    <link:label xlink:label="aipt_UnitPurchaseOptionExercisePrice-label" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">aipt_UnitPurchaseOptionExercisePrice</link:label>
    <link:label xlink:label="aipt_UnitPurchaseOptionExercisePrice-label" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Unit Purchase Option Exercise Price</link:label>
    <link:label xlink:label="aipt_UnitPurchaseOptionExercisePrice-label" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">Represents the per-unit exercise price of the unit purchase option pursuant to the underwriting agreement.</link:label>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="aipt_UnitPurchaseOptionExercisePrice" xlink:to="aipt_UnitPurchaseOptionExercisePrice-label" xlink:type="arc"/>
    <link:loc xlink:href="aipt-20180630.xsd#aipt_UnitPurchaseOptionExercisePricePercentage" xlink:label="aipt_UnitPurchaseOptionExercisePricePercentage" xlink:type="locator"/>
    <link:label xlink:label="aipt_UnitPurchaseOptionExercisePricePercentage-label" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">aipt_UnitPurchaseOptionExercisePricePercentage</link:label>
    <link:label xlink:label="aipt_UnitPurchaseOptionExercisePricePercentage-label" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Unit Purchase Option Exercise Price, Percentage</link:label>
    <link:label xlink:label="aipt_UnitPurchaseOptionExercisePricePercentage-label" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">Represents the exercise price of the unit purchase option pursuant to the underwriting agreement, expressed as a percentage of the public offering price of the units in the offering.</link:label>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="aipt_UnitPurchaseOptionExercisePricePercentage" xlink:to="aipt_UnitPurchaseOptionExercisePricePercentage-label" xlink:type="arc"/>
    <link:loc xlink:href="aipt-20180630.xsd#aipt_DevelopmentStageEnterpriseDisclosuresTextBlock" xlink:label="aipt_DevelopmentStageEnterpriseDisclosuresTextBlock" xlink:type="locator"/>
    <link:label xlink:label="aipt_DevelopmentStageEnterpriseDisclosuresTextBlock-label" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Development Stage Enterprise Disclosures [Text Block]</link:label>
    <link:label xlink:label="aipt_DevelopmentStageEnterpriseDisclosuresTextBlock-label" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">Represents the disclosure of development stage enterprise.</link:label>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="aipt_DevelopmentStageEnterpriseDisclosuresTextBlock" xlink:to="aipt_DevelopmentStageEnterpriseDisclosuresTextBlock-label" xlink:type="arc"/>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_ManufacturingFacilityMember" xlink:label="us-gaap_ManufacturingFacilityMember" xlink:type="locator"/>
    <link:label xlink:label="us-gaap_ManufacturingFacilityMember-label" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Manufacturing Facility [Member]</link:label>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_ManufacturingFacilityMember" xlink:to="us-gaap_ManufacturingFacilityMember-label" xlink:type="arc"/>
    <link:loc xlink:href="aipt-20180630.xsd#aipt_DebtInstrumentRedemptionPrice" xlink:label="aipt_DebtInstrumentRedemptionPrice" xlink:type="locator"/>
    <link:label xlink:label="aipt_DebtInstrumentRedemptionPrice-label" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">aipt_DebtInstrumentRedemptionPrice</link:label>
    <link:label xlink:label="aipt_DebtInstrumentRedemptionPrice-label" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Debt Instrument Redemption Price</link:label>
    <link:label xlink:label="aipt_DebtInstrumentRedemptionPrice-label" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">Price of original principal amount of debt at which debt can be redeemed by the issuer.</link:label>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="aipt_DebtInstrumentRedemptionPrice" xlink:to="aipt_DebtInstrumentRedemptionPrice-label" xlink:type="arc"/>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_AccumulatedOtherComprehensiveIncomeMember" xlink:label="us-gaap_AccumulatedOtherComprehensiveIncomeMember" xlink:type="locator"/>
    <link:label xlink:label="us-gaap_AccumulatedOtherComprehensiveIncomeMember-label" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">AOCI Attributable to Parent [Member]</link:label>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_AccumulatedOtherComprehensiveIncomeMember" xlink:to="us-gaap_AccumulatedOtherComprehensiveIncomeMember-label" xlink:type="arc"/>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_StockholdersEquityAbstract" xlink:label="us-gaap_StockholdersEquityAbstract" xlink:type="locator"/>
    <link:label xlink:label="us-gaap_StockholdersEquityAbstract-label" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Stockholders&#8217; Equity:</link:label>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_StockholdersEquityAbstract" xlink:to="us-gaap_StockholdersEquityAbstract-label" xlink:type="arc"/>
    <link:loc xlink:href="aipt-20180630.xsd#aipt_NotesReceivableInterestRateStatedPercentage" xlink:label="aipt_NotesReceivableInterestRateStatedPercentage" xlink:type="locator"/>
    <link:label xlink:label="aipt_NotesReceivableInterestRateStatedPercentage-label" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">aipt_NotesReceivableInterestRateStatedPercentage</link:label>
    <link:label xlink:label="aipt_NotesReceivableInterestRateStatedPercentage-label" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Notes Receivable, Interest Rate, Stated Percentage</link:label>
    <link:label xlink:label="aipt_NotesReceivableInterestRateStatedPercentage-label" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">Represents the simple interest rate for notes receivable.</link:label>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="aipt_NotesReceivableInterestRateStatedPercentage" xlink:to="aipt_NotesReceivableInterestRateStatedPercentage-label" xlink:type="arc"/>
    <link:loc xlink:href="aipt-20180630.xsd#aipt_PromissoryNotesReceivableMember" xlink:label="aipt_PromissoryNotesReceivableMember" xlink:type="locator"/>
    <link:label xlink:label="aipt_PromissoryNotesReceivableMember-label" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Promissory Notes Receivable [Member]</link:label>
    <link:label xlink:label="aipt_PromissoryNotesReceivableMember-label" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">Represents information pertaining to secured promissory notes receivable.</link:label>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="aipt_PromissoryNotesReceivableMember" xlink:to="aipt_PromissoryNotesReceivableMember-label" xlink:type="arc"/>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_LeaseholdImprovementsMember" xlink:label="us-gaap_LeaseholdImprovementsMember" xlink:type="locator"/>
    <link:label xlink:label="us-gaap_LeaseholdImprovementsMember-label" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Leasehold Improvements [Member]</link:label>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_LeaseholdImprovementsMember" xlink:to="us-gaap_LeaseholdImprovementsMember-label" xlink:type="arc"/>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_PropertyPlantAndEquipmentPolicyTextBlock" xlink:label="us-gaap_PropertyPlantAndEquipmentPolicyTextBlock" xlink:type="locator"/>
    <link:label xlink:label="us-gaap_PropertyPlantAndEquipmentPolicyTextBlock-label" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Property, Plant and Equipment, Policy [Policy Text Block]</link:label>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_PropertyPlantAndEquipmentPolicyTextBlock" xlink:to="us-gaap_PropertyPlantAndEquipmentPolicyTextBlock-label" xlink:type="arc"/>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_PropertyPlantAndEquipmentByTypeAxis" xlink:label="us-gaap_PropertyPlantAndEquipmentByTypeAxis" xlink:type="locator"/>
    <link:label xlink:label="us-gaap_PropertyPlantAndEquipmentByTypeAxis-label" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Property, Plant and Equipment, Type [Axis]</link:label>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_PropertyPlantAndEquipmentByTypeAxis" xlink:to="us-gaap_PropertyPlantAndEquipmentByTypeAxis-label" xlink:type="arc"/>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_PropertyPlantAndEquipmentTypeDomain" xlink:label="us-gaap_PropertyPlantAndEquipmentTypeDomain" xlink:type="locator"/>
    <link:label xlink:label="us-gaap_PropertyPlantAndEquipmentTypeDomain-label" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Property, Plant and Equipment, Type [Domain]</link:label>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_PropertyPlantAndEquipmentTypeDomain" xlink:to="us-gaap_PropertyPlantAndEquipmentTypeDomain-label" xlink:type="arc"/>
    <link:loc xlink:href="aipt-20180630.xsd#aipt_ScheduleOfSharebasedCompensationSharesAuthorizedUnderStockOptionAndWarrantPlansByExercisePriceRangeTableTextBlock" xlink:label="aipt_ScheduleOfSharebasedCompensationSharesAuthorizedUnderStockOptionAndWarrantPlansByExercisePriceRangeTableTextBlock" xlink:type="locator"/>
    <link:label xlink:label="aipt_ScheduleOfSharebasedCompensationSharesAuthorizedUnderStockOptionAndWarrantPlansByExercisePriceRangeTableTextBlock-label" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Schedule of Share-based Compensation Shares Authorized Under Stock Option and Warrant Plans by Exercise Price Range [Table Text Block]</link:label>
    <link:label xlink:label="aipt_ScheduleOfSharebasedCompensationSharesAuthorizedUnderStockOptionAndWarrantPlansByExercisePriceRangeTableTextBlock-label" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">Tabular disclosure of option and warrant exercise prices, by grouped ranges, including the upper and lower limits of the price range, the number of shares under option, weighted average exercise price and remaining contractual option terms.</link:label>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="aipt_ScheduleOfSharebasedCompensationSharesAuthorizedUnderStockOptionAndWarrantPlansByExercisePriceRangeTableTextBlock" xlink:to="aipt_ScheduleOfSharebasedCompensationSharesAuthorizedUnderStockOptionAndWarrantPlansByExercisePriceRangeTableTextBlock-label" xlink:type="arc"/>
    <link:loc xlink:href="aipt-20180630.xsd#aipt_UnderwriterPrice" xlink:label="aipt_UnderwriterPrice" xlink:type="locator"/>
    <link:label xlink:label="aipt_UnderwriterPrice-label" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">aipt_UnderwriterPrice</link:label>
    <link:label xlink:label="aipt_UnderwriterPrice-label" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Underwriter Price</link:label>
    <link:label xlink:label="aipt_UnderwriterPrice-label" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">Share price for the Underwriter under the Underwriting Agreement.</link:label>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="aipt_UnderwriterPrice" xlink:to="aipt_UnderwriterPrice-label" xlink:type="arc"/>
    <link:loc xlink:href="aipt-20180630.xsd#aipt_StockOptionsOneMember" xlink:label="aipt_StockOptionsOneMember" xlink:type="locator"/>
    <link:label xlink:label="aipt_StockOptionsOneMember-label" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Stock Options One [Member]</link:label>
    <link:label xlink:label="aipt_StockOptionsOneMember-label" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">Represents the first stock option.</link:label>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="aipt_StockOptionsOneMember" xlink:to="aipt_StockOptionsOneMember-label" xlink:type="arc"/>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_DeferredTaxAssetsOperatingLossCarryforwards" xlink:label="us-gaap_DeferredTaxAssetsOperatingLossCarryforwards" xlink:type="locator"/>
    <link:label xlink:label="us-gaap_DeferredTaxAssetsOperatingLossCarryforwards-label" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Net Operating Loss</link:label>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_DeferredTaxAssetsOperatingLossCarryforwards" xlink:to="us-gaap_DeferredTaxAssetsOperatingLossCarryforwards-label" xlink:type="arc"/>
    <link:loc xlink:href="aipt-20180630.xsd#aipt_StockOptionsThreeMember" xlink:label="aipt_StockOptionsThreeMember" xlink:type="locator"/>
    <link:label xlink:label="aipt_StockOptionsThreeMember-label" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Stock Options Three [Member]</link:label>
    <link:label xlink:label="aipt_StockOptionsThreeMember-label" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">Represents the third stock option.</link:label>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="aipt_StockOptionsThreeMember" xlink:to="aipt_StockOptionsThreeMember-label" xlink:type="arc"/>
    <link:loc xlink:href="aipt-20180630.xsd#aipt_StockOptionsTwoMember" xlink:label="aipt_StockOptionsTwoMember" xlink:type="locator"/>
    <link:label xlink:label="aipt_StockOptionsTwoMember-label" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Stock Options Two [Member]</link:label>
    <link:label xlink:label="aipt_StockOptionsTwoMember-label" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">Represents the second stock options.</link:label>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="aipt_StockOptionsTwoMember" xlink:to="aipt_StockOptionsTwoMember-label" xlink:type="arc"/>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_AssetsCurrentAbstract" xlink:label="us-gaap_AssetsCurrentAbstract" xlink:type="locator"/>
    <link:label xlink:label="us-gaap_AssetsCurrentAbstract-label" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Current Assets:</link:label>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_AssetsCurrentAbstract" xlink:to="us-gaap_AssetsCurrentAbstract-label" xlink:type="arc"/>
    <link:loc xlink:href="aipt-20180630.xsd#aipt_StockOptionsFourMember" xlink:label="aipt_StockOptionsFourMember" xlink:type="locator"/>
    <link:label xlink:label="aipt_StockOptionsFourMember-label" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Stock Options Four [Member]</link:label>
    <link:label xlink:label="aipt_StockOptionsFourMember-label" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">Represents the fourth stock option.</link:label>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="aipt_StockOptionsFourMember" xlink:to="aipt_StockOptionsFourMember-label" xlink:type="arc"/>
    <link:loc xlink:href="aipt-20180630.xsd#aipt_UnderwritingDiscount" xlink:label="aipt_UnderwritingDiscount" xlink:type="locator"/>
    <link:label xlink:label="aipt_UnderwritingDiscount-label" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">aipt_UnderwritingDiscount</link:label>
    <link:label xlink:label="aipt_UnderwritingDiscount-label" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Underwriting Discount</link:label>
    <link:label xlink:label="aipt_UnderwritingDiscount-label" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">Per share discount resulting from the deference between the share price and underwriter price.</link:label>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="aipt_UnderwritingDiscount" xlink:to="aipt_UnderwritingDiscount-label" xlink:type="arc"/>
    <link:loc xlink:href="aipt-20180630.xsd#aipt_UnderwritingCommission" xlink:label="aipt_UnderwritingCommission" xlink:type="locator"/>
    <link:label xlink:label="aipt_UnderwritingCommission-label" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">aipt_UnderwritingCommission</link:label>
    <link:label xlink:label="aipt_UnderwritingCommission-label" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Underwriting Commission</link:label>
    <link:label xlink:label="aipt_UnderwritingCommission-label" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">Commission percentage for the Underwriter per the Underwriting Agreement.</link:label>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="aipt_UnderwritingCommission" xlink:to="aipt_UnderwritingCommission-label" xlink:type="arc"/>
    <link:loc xlink:href="aipt-20180630.xsd#aipt_StockOptionsFiveMember" xlink:label="aipt_StockOptionsFiveMember" xlink:type="locator"/>
    <link:label xlink:label="aipt_StockOptionsFiveMember-label" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Stock Options Five [Member]</link:label>
    <link:label xlink:label="aipt_StockOptionsFiveMember-label" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">Represents the fifth stock option.</link:label>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="aipt_StockOptionsFiveMember" xlink:to="aipt_StockOptionsFiveMember-label" xlink:type="arc"/>
    <link:loc xlink:href="aipt-20180630.xsd#aipt_StockOptionsSevenMember" xlink:label="aipt_StockOptionsSevenMember" xlink:type="locator"/>
    <link:label xlink:label="aipt_StockOptionsSevenMember-label" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Stock Options Seven [Member]</link:label>
    <link:label xlink:label="aipt_StockOptionsSevenMember-label" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">Represents the seventh stock options.</link:label>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="aipt_StockOptionsSevenMember" xlink:to="aipt_StockOptionsSevenMember-label" xlink:type="arc"/>
    <link:loc xlink:href="aipt-20180630.xsd#aipt_StockOptionsSixMember" xlink:label="aipt_StockOptionsSixMember" xlink:type="locator"/>
    <link:label xlink:label="aipt_StockOptionsSixMember-label" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Stock Options Six [Member]</link:label>
    <link:label xlink:label="aipt_StockOptionsSixMember-label" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">Represents the sixth stock options.</link:label>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="aipt_StockOptionsSixMember" xlink:to="aipt_StockOptionsSixMember-label" xlink:type="arc"/>
    <link:loc xlink:href="aipt-20180630.xsd#aipt_StockOptionsNineMember" xlink:label="aipt_StockOptionsNineMember" xlink:type="locator"/>
    <link:label xlink:label="aipt_StockOptionsNineMember-label" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Stock Options Nine [Member]</link:label>
    <link:label xlink:label="aipt_StockOptionsNineMember-label" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">Represents the ninth stock options.</link:label>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="aipt_StockOptionsNineMember" xlink:to="aipt_StockOptionsNineMember-label" xlink:type="arc"/>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_InventoryPolicyTextBlock" xlink:label="us-gaap_InventoryPolicyTextBlock" xlink:type="locator"/>
    <link:label xlink:label="us-gaap_InventoryPolicyTextBlock-label" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Inventory, Policy [Policy Text Block]</link:label>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_InventoryPolicyTextBlock" xlink:to="us-gaap_InventoryPolicyTextBlock-label" xlink:type="arc"/>
    <link:loc xlink:href="aipt-20180630.xsd#aipt_StockOptionsEightMember" xlink:label="aipt_StockOptionsEightMember" xlink:type="locator"/>
    <link:label xlink:label="aipt_StockOptionsEightMember-label" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Stock Options Eight [Member]</link:label>
    <link:label xlink:label="aipt_StockOptionsEightMember-label" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">Represents the eighth stock option.</link:label>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="aipt_StockOptionsEightMember" xlink:to="aipt_StockOptionsEightMember-label" xlink:type="arc"/>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_IPOMember" xlink:label="us-gaap_IPOMember" xlink:type="locator"/>
    <link:label xlink:label="us-gaap_IPOMember-label" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">IPO [Member]</link:label>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_IPOMember" xlink:to="us-gaap_IPOMember-label" xlink:type="arc"/>
    <link:loc xlink:href="aipt-20180630.xsd#aipt_StockOptionsElevenMember" xlink:label="aipt_StockOptionsElevenMember" xlink:type="locator"/>
    <link:label xlink:label="aipt_StockOptionsElevenMember-label" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Stock Options Eleven [Member]</link:label>
    <link:label xlink:label="aipt_StockOptionsElevenMember-label" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">Represents the eleventh stock option.</link:label>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="aipt_StockOptionsElevenMember" xlink:to="aipt_StockOptionsElevenMember-label" xlink:type="arc"/>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_EquityMethodInvestmentSummarizedFinancialInformationNetIncomeLoss" xlink:label="us-gaap_EquityMethodInvestmentSummarizedFinancialInformationNetIncomeLoss" xlink:type="locator"/>
    <link:label xlink:label="us-gaap_EquityMethodInvestmentSummarizedFinancialInformationNetIncomeLoss-label" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Net loss to investee</link:label>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_EquityMethodInvestmentSummarizedFinancialInformationNetIncomeLoss" xlink:to="us-gaap_EquityMethodInvestmentSummarizedFinancialInformationNetIncomeLoss-label" xlink:type="arc"/>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_PrivatePlacementMember" xlink:label="us-gaap_PrivatePlacementMember" xlink:type="locator"/>
    <link:label xlink:label="us-gaap_PrivatePlacementMember-label" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Private Placement [Member]</link:label>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_PrivatePlacementMember" xlink:to="us-gaap_PrivatePlacementMember-label" xlink:type="arc"/>
    <link:loc xlink:href="aipt-20180630.xsd#aipt_StockOptionsTenMember" xlink:label="aipt_StockOptionsTenMember" xlink:type="locator"/>
    <link:label xlink:label="aipt_StockOptionsTenMember-label" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Stock Options Ten [Member]</link:label>
    <link:label xlink:label="aipt_StockOptionsTenMember-label" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">Represents the tenth stock options.</link:label>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="aipt_StockOptionsTenMember" xlink:to="aipt_StockOptionsTenMember-label" xlink:type="arc"/>
    <link:loc xlink:href="aipt-20180630.xsd#aipt_StockOptionsThirteenMember" xlink:label="aipt_StockOptionsThirteenMember" xlink:type="locator"/>
    <link:label xlink:label="aipt_StockOptionsThirteenMember-label" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Stock Options Thirteen [Member]</link:label>
    <link:label xlink:label="aipt_StockOptionsThirteenMember-label" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">Represents the thirteenth stock options.</link:label>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="aipt_StockOptionsThirteenMember" xlink:to="aipt_StockOptionsThirteenMember-label" xlink:type="arc"/>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_OverAllotmentOptionMember" xlink:label="us-gaap_OverAllotmentOptionMember" xlink:type="locator"/>
    <link:label xlink:label="us-gaap_OverAllotmentOptionMember-label" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Over-Allotment Option [Member]</link:label>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_OverAllotmentOptionMember" xlink:to="us-gaap_OverAllotmentOptionMember-label" xlink:type="arc"/>
    <link:loc xlink:href="aipt-20180630.xsd#aipt_StockOptionsTwelveMember" xlink:label="aipt_StockOptionsTwelveMember" xlink:type="locator"/>
    <link:label xlink:label="aipt_StockOptionsTwelveMember-label" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Stock Options Twelve [Member]</link:label>
    <link:label xlink:label="aipt_StockOptionsTwelveMember-label" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">Represents the twelfth stock options.</link:label>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="aipt_StockOptionsTwelveMember" xlink:to="aipt_StockOptionsTwelveMember-label" xlink:type="arc"/>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_NetCashProvidedByUsedInFinancingActivities" xlink:label="us-gaap_NetCashProvidedByUsedInFinancingActivities" xlink:type="locator"/>
    <link:label xlink:label="us-gaap_NetCashProvidedByUsedInFinancingActivities-label" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">us-gaap_NetCashProvidedByUsedInFinancingActivities</link:label>
    <link:label xlink:label="us-gaap_NetCashProvidedByUsedInFinancingActivities-label" xlink:role="http://www.xbrl.org/2003/role/totalLabel" xlink:type="resource" xml:lang="en-US">Net cash provided by financing activities</link:label>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_NetCashProvidedByUsedInFinancingActivities" xlink:to="us-gaap_NetCashProvidedByUsedInFinancingActivities-label" xlink:type="arc"/>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_Liabilities" xlink:label="us-gaap_Liabilities" xlink:type="locator"/>
    <link:label xlink:label="us-gaap_Liabilities-label" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">us-gaap_Liabilities</link:label>
    <link:label xlink:label="us-gaap_Liabilities-label" xlink:role="http://www.xbrl.org/2003/role/totalLabel" xlink:type="resource" xml:lang="en-US">Total Liabilities</link:label>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_Liabilities" xlink:to="us-gaap_Liabilities-label" xlink:type="arc"/>
    <link:loc xlink:href="aipt-20180630.xsd#aipt_StockOptionsFifteenMember" xlink:label="aipt_StockOptionsFifteenMember" xlink:type="locator"/>
    <link:label xlink:label="aipt_StockOptionsFifteenMember-label" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Stock Options Fifteen [Member]</link:label>
    <link:label xlink:label="aipt_StockOptionsFifteenMember-label" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">Represents the fifteenth stock options.</link:label>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="aipt_StockOptionsFifteenMember" xlink:to="aipt_StockOptionsFifteenMember-label" xlink:type="arc"/>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_EquityMethodInvestmentSummarizedFinancialInformationRevenue" xlink:label="us-gaap_EquityMethodInvestmentSummarizedFinancialInformationRevenue" xlink:type="locator"/>
    <link:label xlink:label="us-gaap_EquityMethodInvestmentSummarizedFinancialInformationRevenue-label" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:type="resource" xml:lang="en-US">Revenue</link:label>
    <link:label xlink:label="us-gaap_EquityMethodInvestmentSummarizedFinancialInformationRevenue-label" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">us-gaap_EquityMethodInvestmentSummarizedFinancialInformationRevenue</link:label>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_EquityMethodInvestmentSummarizedFinancialInformationRevenue" xlink:to="us-gaap_EquityMethodInvestmentSummarizedFinancialInformationRevenue-label" xlink:type="arc"/>
    <link:loc xlink:href="aipt-20180630.xsd#aipt_OptionGrantedToUnderwriterToPurchaseAdditionalUnitsPeriod" xlink:label="aipt_OptionGrantedToUnderwriterToPurchaseAdditionalUnitsPeriod" xlink:type="locator"/>
    <link:label xlink:label="aipt_OptionGrantedToUnderwriterToPurchaseAdditionalUnitsPeriod-label" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">aipt_OptionGrantedToUnderwriterToPurchaseAdditionalUnitsPeriod</link:label>
    <link:label xlink:label="aipt_OptionGrantedToUnderwriterToPurchaseAdditionalUnitsPeriod-label" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Option Granted to Underwriter to Purchase Additional Units Period</link:label>
    <link:label xlink:label="aipt_OptionGrantedToUnderwriterToPurchaseAdditionalUnitsPeriod-label" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">Represents the period of time over which the underwriter has been granted an option by the Company to purchase a specified number of additional units solely to cover over-allotments.</link:label>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="aipt_OptionGrantedToUnderwriterToPurchaseAdditionalUnitsPeriod" xlink:to="aipt_OptionGrantedToUnderwriterToPurchaseAdditionalUnitsPeriod-label" xlink:type="arc"/>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_CommitmentsAndContingencies" xlink:label="us-gaap_CommitmentsAndContingencies" xlink:type="locator"/>
    <link:label xlink:label="us-gaap_CommitmentsAndContingencies-label" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Commitments and Contingencies</link:label>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_CommitmentsAndContingencies" xlink:to="us-gaap_CommitmentsAndContingencies-label" xlink:type="arc"/>
    <link:loc xlink:href="aipt-20180630.xsd#aipt_StockOptionsFourteenMember" xlink:label="aipt_StockOptionsFourteenMember" xlink:type="locator"/>
    <link:label xlink:label="aipt_StockOptionsFourteenMember-label" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Stock Options Fourteen [Member]</link:label>
    <link:label xlink:label="aipt_StockOptionsFourteenMember-label" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">Represents the fourteenth stock options.</link:label>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="aipt_StockOptionsFourteenMember" xlink:to="aipt_StockOptionsFourteenMember-label" xlink:type="arc"/>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_SubsidiarySaleOfStockAxis" xlink:label="us-gaap_SubsidiarySaleOfStockAxis" xlink:type="locator"/>
    <link:label xlink:label="us-gaap_SubsidiarySaleOfStockAxis-label" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Sale of Stock [Axis]</link:label>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_SubsidiarySaleOfStockAxis" xlink:to="us-gaap_SubsidiarySaleOfStockAxis-label" xlink:type="arc"/>
    <link:loc xlink:href="aipt-20180630.xsd#aipt_StockOptionsSeventeenMember" xlink:label="aipt_StockOptionsSeventeenMember" xlink:type="locator"/>
    <link:label xlink:label="aipt_StockOptionsSeventeenMember-label" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Stock Options Seventeen [Member]</link:label>
    <link:label xlink:label="aipt_StockOptionsSeventeenMember-label" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">Represents the seventeenth stock options.</link:label>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="aipt_StockOptionsSeventeenMember" xlink:to="aipt_StockOptionsSeventeenMember-label" xlink:type="arc"/>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_EquityMethodInvestmentSummarizedFinancialInformationGrossProfitLoss" xlink:label="us-gaap_EquityMethodInvestmentSummarizedFinancialInformationGrossProfitLoss" xlink:type="locator"/>
    <link:label xlink:label="us-gaap_EquityMethodInvestmentSummarizedFinancialInformationGrossProfitLoss-label" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Gross margin</link:label>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_EquityMethodInvestmentSummarizedFinancialInformationGrossProfitLoss" xlink:to="us-gaap_EquityMethodInvestmentSummarizedFinancialInformationGrossProfitLoss-label" xlink:type="arc"/>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_SaleOfStockNameOfTransactionDomain" xlink:label="us-gaap_SaleOfStockNameOfTransactionDomain" xlink:type="locator"/>
    <link:label xlink:label="us-gaap_SaleOfStockNameOfTransactionDomain-label" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Sale of Stock [Domain]</link:label>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_SaleOfStockNameOfTransactionDomain" xlink:to="us-gaap_SaleOfStockNameOfTransactionDomain-label" xlink:type="arc"/>
    <link:loc xlink:href="aipt-20180630.xsd#aipt_OptionGrantedToUnderwriterToPurchaseAdditionalUnitsNumberOfUnitsGranted" xlink:label="aipt_OptionGrantedToUnderwriterToPurchaseAdditionalUnitsNumberOfUnitsGranted" xlink:type="locator"/>
    <link:label xlink:label="aipt_OptionGrantedToUnderwriterToPurchaseAdditionalUnitsNumberOfUnitsGranted-label" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">aipt_OptionGrantedToUnderwriterToPurchaseAdditionalUnitsNumberOfUnitsGranted</link:label>
    <link:label xlink:label="aipt_OptionGrantedToUnderwriterToPurchaseAdditionalUnitsNumberOfUnitsGranted-label" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Option Granted to Underwriter to Purchase Additional Units Number of Units Granted</link:label>
    <link:label xlink:label="aipt_OptionGrantedToUnderwriterToPurchaseAdditionalUnitsNumberOfUnitsGranted-label" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">Represents the number of additional units the underwriter has been granted, by the Company, an option to purchase, during a specified period solely to cover over-allotments.</link:label>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="aipt_OptionGrantedToUnderwriterToPurchaseAdditionalUnitsNumberOfUnitsGranted" xlink:to="aipt_OptionGrantedToUnderwriterToPurchaseAdditionalUnitsNumberOfUnitsGranted-label" xlink:type="arc"/>
    <link:loc xlink:href="aipt-20180630.xsd#aipt_StockOptionsSixteenMember" xlink:label="aipt_StockOptionsSixteenMember" xlink:type="locator"/>
    <link:label xlink:label="aipt_StockOptionsSixteenMember-label" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Stock Options Sixteen [Member]</link:label>
    <link:label xlink:label="aipt_StockOptionsSixteenMember-label" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">Represents the sixteenth stock options.</link:label>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="aipt_StockOptionsSixteenMember" xlink:to="aipt_StockOptionsSixteenMember-label" xlink:type="arc"/>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_EquityMethodInvestmentSummarizedFinancialInformationIncomeLossFromContinuingOperationsBeforeExtraordinaryItems" xlink:label="us-gaap_EquityMethodInvestmentSummarizedFinancialInformationIncomeLossFromContinuingOperationsBeforeExtraordinaryItems" xlink:type="locator"/>
    <link:label xlink:label="us-gaap_EquityMethodInvestmentSummarizedFinancialInformationIncomeLossFromContinuingOperationsBeforeExtraordinaryItems-label" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Net loss from continuing operations</link:label>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_EquityMethodInvestmentSummarizedFinancialInformationIncomeLossFromContinuingOperationsBeforeExtraordinaryItems" xlink:to="us-gaap_EquityMethodInvestmentSummarizedFinancialInformationIncomeLossFromContinuingOperationsBeforeExtraordinaryItems-label" xlink:type="arc"/>
    <link:loc xlink:href="aipt-20180630.xsd#aipt_StockOptionsNineteenMember" xlink:label="aipt_StockOptionsNineteenMember" xlink:type="locator"/>
    <link:label xlink:label="aipt_StockOptionsNineteenMember-label" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Stock Options Nineteen [Member]</link:label>
    <link:label xlink:label="aipt_StockOptionsNineteenMember-label" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">Represents the nineteenth stock options.</link:label>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="aipt_StockOptionsNineteenMember" xlink:to="aipt_StockOptionsNineteenMember-label" xlink:type="arc"/>
    <link:loc xlink:href="aipt-20180630.xsd#aipt_StockOptionsEighteenMember" xlink:label="aipt_StockOptionsEighteenMember" xlink:type="locator"/>
    <link:label xlink:label="aipt_StockOptionsEighteenMember-label" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Stock Options Eighteen [Member]</link:label>
    <link:label xlink:label="aipt_StockOptionsEighteenMember-label" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">Represents the eighteenth stock options.</link:label>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="aipt_StockOptionsEighteenMember" xlink:to="aipt_StockOptionsEighteenMember-label" xlink:type="arc"/>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_NetCashProvidedByUsedInOperatingActivities" xlink:label="us-gaap_NetCashProvidedByUsedInOperatingActivities" xlink:type="locator"/>
    <link:label xlink:label="us-gaap_NetCashProvidedByUsedInOperatingActivities-label" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">us-gaap_NetCashProvidedByUsedInOperatingActivities</link:label>
    <link:label xlink:label="us-gaap_NetCashProvidedByUsedInOperatingActivities-label" xlink:role="http://www.xbrl.org/2003/role/totalLabel" xlink:type="resource" xml:lang="en-US">Net cash used in operating activities</link:label>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_NetCashProvidedByUsedInOperatingActivities" xlink:to="us-gaap_NetCashProvidedByUsedInOperatingActivities-label" xlink:type="arc"/>
    <link:loc xlink:href="aipt-20180630.xsd#aipt_StockOptionsTwentyOneMember" xlink:label="aipt_StockOptionsTwentyOneMember" xlink:type="locator"/>
    <link:label xlink:label="aipt_StockOptionsTwentyOneMember-label" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Stock Options Twenty One [Member]</link:label>
    <link:label xlink:label="aipt_StockOptionsTwentyOneMember-label" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">Represents the twenty first stock options.</link:label>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="aipt_StockOptionsTwentyOneMember" xlink:to="aipt_StockOptionsTwentyOneMember-label" xlink:type="arc"/>
    <link:loc xlink:href="aipt-20180630.xsd#aipt_UnderwritingAgreementNonaccountableExpenseAllowancePercentage" xlink:label="aipt_UnderwritingAgreementNonaccountableExpenseAllowancePercentage" xlink:type="locator"/>
    <link:label xlink:label="aipt_UnderwritingAgreementNonaccountableExpenseAllowancePercentage-label" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">aipt_UnderwritingAgreementNonaccountableExpenseAllowancePercentage</link:label>
    <link:label xlink:label="aipt_UnderwritingAgreementNonaccountableExpenseAllowancePercentage-label" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Underwriting Agreement Non-accountable Expense Allowance Percentage</link:label>
    <link:label xlink:label="aipt_UnderwritingAgreementNonaccountableExpenseAllowancePercentage-label" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">Represents the non-accountable expense allowance, expressed as a percentage of the gross proceeds of the offering (excluding any proceeds from the over-allotment option, if any), the Company has agreed to pay the underwriter.</link:label>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="aipt_UnderwritingAgreementNonaccountableExpenseAllowancePercentage" xlink:to="aipt_UnderwritingAgreementNonaccountableExpenseAllowancePercentage-label" xlink:type="arc"/>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_NetCashProvidedByUsedInInvestingActivities" xlink:label="us-gaap_NetCashProvidedByUsedInInvestingActivities" xlink:type="locator"/>
    <link:label xlink:label="us-gaap_NetCashProvidedByUsedInInvestingActivities-label" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">us-gaap_NetCashProvidedByUsedInInvestingActivities</link:label>
    <link:label xlink:label="us-gaap_NetCashProvidedByUsedInInvestingActivities-label" xlink:role="http://www.xbrl.org/2003/role/totalLabel" xlink:type="resource" xml:lang="en-US">Net cash provided by (used in) investing activities:</link:label>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_NetCashProvidedByUsedInInvestingActivities" xlink:to="us-gaap_NetCashProvidedByUsedInInvestingActivities-label" xlink:type="arc"/>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_PrepaidExpenseAndOtherAssetsCurrent" xlink:label="us-gaap_PrepaidExpenseAndOtherAssetsCurrent" xlink:type="locator"/>
    <link:label xlink:label="us-gaap_PrepaidExpenseAndOtherAssetsCurrent-label" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Prepaid Expense and other assets</link:label>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_PrepaidExpenseAndOtherAssetsCurrent" xlink:to="us-gaap_PrepaidExpenseAndOtherAssetsCurrent-label" xlink:type="arc"/>
    <link:loc xlink:href="aipt-20180630.xsd#aipt_StockOptionsTwentyMember" xlink:label="aipt_StockOptionsTwentyMember" xlink:type="locator"/>
    <link:label xlink:label="aipt_StockOptionsTwentyMember-label" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Stock Options Twenty [Member]</link:label>
    <link:label xlink:label="aipt_StockOptionsTwentyMember-label" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">Represents the twentieth stock options.</link:label>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="aipt_StockOptionsTwentyMember" xlink:to="aipt_StockOptionsTwentyMember-label" xlink:type="arc"/>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_CashAndCashEquivalentsPeriodIncreaseDecrease" xlink:label="us-gaap_CashAndCashEquivalentsPeriodIncreaseDecrease" xlink:type="locator"/>
    <link:label xlink:label="us-gaap_CashAndCashEquivalentsPeriodIncreaseDecrease-label" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">us-gaap_CashAndCashEquivalentsPeriodIncreaseDecrease</link:label>
    <link:label xlink:label="us-gaap_CashAndCashEquivalentsPeriodIncreaseDecrease-label" xlink:role="http://www.xbrl.org/2003/role/totalLabel" xlink:type="resource" xml:lang="en-US">Net increase (decrease) in cash and cash equivalents</link:label>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_CashAndCashEquivalentsPeriodIncreaseDecrease" xlink:to="us-gaap_CashAndCashEquivalentsPeriodIncreaseDecrease-label" xlink:type="arc"/>
    <link:loc xlink:href="aipt-20180630.xsd#aipt_StockOptionsTwentyTwoMember" xlink:label="aipt_StockOptionsTwentyTwoMember" xlink:type="locator"/>
    <link:label xlink:label="aipt_StockOptionsTwentyTwoMember-label" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Stock Options Twenty Two [Member]</link:label>
    <link:label xlink:label="aipt_StockOptionsTwentyTwoMember-label" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">Represents the twenty second stock options.</link:label>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="aipt_StockOptionsTwentyTwoMember" xlink:to="aipt_StockOptionsTwentyTwoMember-label" xlink:type="arc"/>
    <link:loc xlink:href="aipt-20180630.xsd#aipt_SharePerEachUnit" xlink:label="aipt_SharePerEachUnit" xlink:type="locator"/>
    <link:label xlink:label="aipt_SharePerEachUnit-label" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">aipt_SharePerEachUnit</link:label>
    <link:label xlink:label="aipt_SharePerEachUnit-label" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Share Per Each Unit</link:label>
    <link:label xlink:label="aipt_SharePerEachUnit-label" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">Represents the shares per each unit.</link:label>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="aipt_SharePerEachUnit" xlink:to="aipt_SharePerEachUnit-label" xlink:type="arc"/>
    <link:loc xlink:href="aipt-20180630.xsd#aipt_UnderwritingAgreementExpensesAgreedToReimburseTheUnderwriter" xlink:label="aipt_UnderwritingAgreementExpensesAgreedToReimburseTheUnderwriter" xlink:type="locator"/>
    <link:label xlink:label="aipt_UnderwritingAgreementExpensesAgreedToReimburseTheUnderwriter-label" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">aipt_UnderwritingAgreementExpensesAgreedToReimburseTheUnderwriter</link:label>
    <link:label xlink:label="aipt_UnderwritingAgreementExpensesAgreedToReimburseTheUnderwriter-label" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Underwriting Agreement Expenses Agreed to Reimburse the Underwriter</link:label>
    <link:label xlink:label="aipt_UnderwritingAgreementExpensesAgreedToReimburseTheUnderwriter-label" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">Represents the amount of the underwriter's expenses incurred for which the Company has agreed to reimburse the underwriter pursuant to the underwriting agreement.</link:label>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="aipt_UnderwritingAgreementExpensesAgreedToReimburseTheUnderwriter" xlink:to="aipt_UnderwritingAgreementExpensesAgreedToReimburseTheUnderwriter-label" xlink:type="arc"/>
    <link:loc xlink:href="aipt-20180630.xsd#aipt_StockOptionsTwentyThreeMember" xlink:label="aipt_StockOptionsTwentyThreeMember" xlink:type="locator"/>
    <link:label xlink:label="aipt_StockOptionsTwentyThreeMember-label" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Stock Options Twenty Three [Member]</link:label>
    <link:label xlink:label="aipt_StockOptionsTwentyThreeMember-label" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">Represents the twenty third stock options.</link:label>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="aipt_StockOptionsTwentyThreeMember" xlink:to="aipt_StockOptionsTwentyThreeMember-label" xlink:type="arc"/>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_GrossProfit" xlink:label="us-gaap_GrossProfit" xlink:type="locator"/>
    <link:label xlink:label="us-gaap_GrossProfit-label" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">us-gaap_GrossProfit</link:label>
    <link:label xlink:label="us-gaap_GrossProfit-label" xlink:role="http://www.xbrl.org/2003/role/totalLabel" xlink:type="resource" xml:lang="en-US">Gross margin</link:label>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_GrossProfit" xlink:to="us-gaap_GrossProfit-label" xlink:type="arc"/>
    <link:loc xlink:href="aipt-20180630.xsd#aipt_CorporateStockTransferIncMember" xlink:label="aipt_CorporateStockTransferIncMember" xlink:type="locator"/>
    <link:label xlink:label="aipt_CorporateStockTransferIncMember-label" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Corporate Stock Transfer Inc. [Member]</link:label>
    <link:label xlink:label="aipt_CorporateStockTransferIncMember-label" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">Represents information pertaining to Corporate Stock Transfer, Inc.</link:label>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="aipt_CorporateStockTransferIncMember" xlink:to="aipt_CorporateStockTransferIncMember-label" xlink:type="arc"/>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_CostOfGoodsAndServicesSold" xlink:label="us-gaap_CostOfGoodsAndServicesSold" xlink:type="locator"/>
    <link:label xlink:label="us-gaap_CostOfGoodsAndServicesSold-label" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Cost of goods sold</link:label>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_CostOfGoodsAndServicesSold" xlink:to="us-gaap_CostOfGoodsAndServicesSold-label" xlink:type="arc"/>
    <link:loc xlink:href="http://xbrl.fasb.org/srt/2018/elts/srt-2018-01-31.xsd#srt_CounterpartyNameAxis" xlink:label="srt_CounterpartyNameAxis" xlink:type="locator"/>
    <link:label xlink:label="srt_CounterpartyNameAxis-label" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Counterparty Name [Axis]</link:label>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="srt_CounterpartyNameAxis" xlink:to="srt_CounterpartyNameAxis-label" xlink:type="arc"/>
    <link:loc xlink:href="aipt-20180630.xsd#aipt_UnitAgreementNumberOfSharesOfCommonStockIncludedInEachUnit" xlink:label="aipt_UnitAgreementNumberOfSharesOfCommonStockIncludedInEachUnit" xlink:type="locator"/>
    <link:label xlink:label="aipt_UnitAgreementNumberOfSharesOfCommonStockIncludedInEachUnit-label" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">aipt_UnitAgreementNumberOfSharesOfCommonStockIncludedInEachUnit</link:label>
    <link:label xlink:label="aipt_UnitAgreementNumberOfSharesOfCommonStockIncludedInEachUnit-label" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Unit Agreement Number of Shares of Common Stock Included in Each Unit</link:label>
    <link:label xlink:label="aipt_UnitAgreementNumberOfSharesOfCommonStockIncludedInEachUnit-label" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">Represents the number of shares of common stock that are included in each unit pursuant to a unit agreement.</link:label>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="aipt_UnitAgreementNumberOfSharesOfCommonStockIncludedInEachUnit" xlink:to="aipt_UnitAgreementNumberOfSharesOfCommonStockIncludedInEachUnit-label" xlink:type="arc"/>
    <link:loc xlink:href="aipt-20180630.xsd#aipt_StockOptionsTwentyFourMember" xlink:label="aipt_StockOptionsTwentyFourMember" xlink:type="locator"/>
    <link:label xlink:label="aipt_StockOptionsTwentyFourMember-label" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Stock Options Twenty Four [Member]</link:label>
    <link:label xlink:label="aipt_StockOptionsTwentyFourMember-label" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">Represent the twenty fourth stock options.</link:label>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="aipt_StockOptionsTwentyFourMember" xlink:to="aipt_StockOptionsTwentyFourMember-label" xlink:type="arc"/>
    <link:loc xlink:href="http://xbrl.fasb.org/srt/2018/elts/srt-2018-01-31.xsd#srt_RepurchaseAgreementCounterpartyNameDomain" xlink:label="srt_RepurchaseAgreementCounterpartyNameDomain" xlink:type="locator"/>
    <link:label xlink:label="srt_RepurchaseAgreementCounterpartyNameDomain-label" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Counterparty Name [Domain]</link:label>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="srt_RepurchaseAgreementCounterpartyNameDomain" xlink:to="srt_RepurchaseAgreementCounterpartyNameDomain-label" xlink:type="arc"/>
    <link:loc xlink:href="aipt-20180630.xsd#aipt_WarrantTwoMember" xlink:label="aipt_WarrantTwoMember" xlink:type="locator"/>
    <link:label xlink:label="aipt_WarrantTwoMember-label" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Warrant Two [Member]</link:label>
    <link:label xlink:label="aipt_WarrantTwoMember-label" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">Represents warrant two.</link:label>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="aipt_WarrantTwoMember" xlink:to="aipt_WarrantTwoMember-label" xlink:type="arc"/>
    <link:loc xlink:href="aipt-20180630.xsd#aipt_WarrantOneMember" xlink:label="aipt_WarrantOneMember" xlink:type="locator"/>
    <link:label xlink:label="aipt_WarrantOneMember-label" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Warrant One [Member]</link:label>
    <link:label xlink:label="aipt_WarrantOneMember-label" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">Represents warrant one.</link:label>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="aipt_WarrantOneMember" xlink:to="aipt_WarrantOneMember-label" xlink:type="arc"/>
    <link:loc xlink:href="aipt-20180630.xsd#aipt_WarrantFourMember" xlink:label="aipt_WarrantFourMember" xlink:type="locator"/>
    <link:label xlink:label="aipt_WarrantFourMember-label" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Warrant Four [Member]</link:label>
    <link:label xlink:label="aipt_WarrantFourMember-label" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">Represents warrant four.</link:label>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="aipt_WarrantFourMember" xlink:to="aipt_WarrantFourMember-label" xlink:type="arc"/>
    <link:loc xlink:href="aipt-20180630.xsd#aipt_WarrantThreeMember" xlink:label="aipt_WarrantThreeMember" xlink:type="locator"/>
    <link:label xlink:label="aipt_WarrantThreeMember-label" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Warrant Three [Member]</link:label>
    <link:label xlink:label="aipt_WarrantThreeMember-label" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">Represents warrant three.</link:label>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="aipt_WarrantThreeMember" xlink:to="aipt_WarrantThreeMember-label" xlink:type="arc"/>
    <link:loc xlink:href="aipt-20180630.xsd#aipt_FormerCEOMember" xlink:label="aipt_FormerCEOMember" xlink:type="locator"/>
    <link:label xlink:label="aipt_FormerCEOMember-label" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Former CEO [Member]</link:label>
    <link:label xlink:label="aipt_FormerCEOMember-label" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">Represents the former CEO of the reporting entity.</link:label>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="aipt_FormerCEOMember" xlink:to="aipt_FormerCEOMember-label" xlink:type="arc"/>
    <link:loc xlink:href="aipt-20180630.xsd#aipt_WarrantSixMember" xlink:label="aipt_WarrantSixMember" xlink:type="locator"/>
    <link:label xlink:label="aipt_WarrantSixMember-label" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Warrant Six [Member]</link:label>
    <link:label xlink:label="aipt_WarrantSixMember-label" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">Represents warrant six.</link:label>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="aipt_WarrantSixMember" xlink:to="aipt_WarrantSixMember-label" xlink:type="arc"/>
    <link:loc xlink:href="aipt-20180630.xsd#aipt_WarrantFiveMember" xlink:label="aipt_WarrantFiveMember" xlink:type="locator"/>
    <link:label xlink:label="aipt_WarrantFiveMember-label" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Warrant Five [Member]</link:label>
    <link:label xlink:label="aipt_WarrantFiveMember-label" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">Represents warrant five.</link:label>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="aipt_WarrantFiveMember" xlink:to="aipt_WarrantFiveMember-label" xlink:type="arc"/>
    <link:loc xlink:href="aipt-20180630.xsd#aipt_WarrantEightMember" xlink:label="aipt_WarrantEightMember" xlink:type="locator"/>
    <link:label xlink:label="aipt_WarrantEightMember-label" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Warrant Eight [Member]</link:label>
    <link:label xlink:label="aipt_WarrantEightMember-label" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">Represents warrant eight.</link:label>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="aipt_WarrantEightMember" xlink:to="aipt_WarrantEightMember-label" xlink:type="arc"/>
    <link:loc xlink:href="aipt-20180630.xsd#aipt_InvestmentBankerMember" xlink:label="aipt_InvestmentBankerMember" xlink:type="locator"/>
    <link:label xlink:label="aipt_InvestmentBankerMember-label" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Investment Banker [Member]</link:label>
    <link:label xlink:label="aipt_InvestmentBankerMember-label" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">Represents the investment banker.</link:label>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="aipt_InvestmentBankerMember" xlink:to="aipt_InvestmentBankerMember-label" xlink:type="arc"/>
    <link:loc xlink:href="aipt-20180630.xsd#aipt_SeriesAWarrantsMember" xlink:label="aipt_SeriesAWarrantsMember" xlink:type="locator"/>
    <link:label xlink:label="aipt_SeriesAWarrantsMember-label" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Series A Warrants [Member]</link:label>
    <link:label xlink:label="aipt_SeriesAWarrantsMember-label" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">Represents information pertaining to Series A Warrants.</link:label>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="aipt_SeriesAWarrantsMember" xlink:to="aipt_SeriesAWarrantsMember-label" xlink:type="arc"/>
    <link:loc xlink:href="aipt-20180630.xsd#aipt_WarrantSevenMember" xlink:label="aipt_WarrantSevenMember" xlink:type="locator"/>
    <link:label xlink:label="aipt_WarrantSevenMember-label" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Warrant Seven [Member]</link:label>
    <link:label xlink:label="aipt_WarrantSevenMember-label" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">Represents warrant seven.</link:label>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="aipt_WarrantSevenMember" xlink:to="aipt_WarrantSevenMember-label" xlink:type="arc"/>
    <link:loc xlink:href="aipt-20180630.xsd#aipt_WarrantTenMember" xlink:label="aipt_WarrantTenMember" xlink:type="locator"/>
    <link:label xlink:label="aipt_WarrantTenMember-label" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Warrant Ten [Member]</link:label>
    <link:label xlink:label="aipt_WarrantTenMember-label" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">Represents warrant ten.</link:label>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="aipt_WarrantTenMember" xlink:to="aipt_WarrantTenMember-label" xlink:type="arc"/>
    <link:loc xlink:href="aipt-20180630.xsd#aipt_WarrantNineMember" xlink:label="aipt_WarrantNineMember" xlink:type="locator"/>
    <link:label xlink:label="aipt_WarrantNineMember-label" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Warrant Nine [Member]</link:label>
    <link:label xlink:label="aipt_WarrantNineMember-label" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">Represents warrant nine.</link:label>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="aipt_WarrantNineMember" xlink:to="aipt_WarrantNineMember-label" xlink:type="arc"/>
    <link:loc xlink:href="aipt-20180630.xsd#aipt_WarrantTwelveMember" xlink:label="aipt_WarrantTwelveMember" xlink:type="locator"/>
    <link:label xlink:label="aipt_WarrantTwelveMember-label" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Warrant Twelve [Member]</link:label>
    <link:label xlink:label="aipt_WarrantTwelveMember-label" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">Represents warrant twelve.</link:label>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="aipt_WarrantTwelveMember" xlink:to="aipt_WarrantTwelveMember-label" xlink:type="arc"/>
    <link:loc xlink:href="aipt-20180630.xsd#aipt_WarrantElevenMember" xlink:label="aipt_WarrantElevenMember" xlink:type="locator"/>
    <link:label xlink:label="aipt_WarrantElevenMember-label" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Warrant Eleven [Member]</link:label>
    <link:label xlink:label="aipt_WarrantElevenMember-label" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">Represents warrant eleven.</link:label>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="aipt_WarrantElevenMember" xlink:to="aipt_WarrantElevenMember-label" xlink:type="arc"/>
    <link:loc xlink:href="aipt-20180630.xsd#aipt_ClassOfWarrantOrRightOutstandingWeightedAverageRemainingContractualTerm" xlink:label="aipt_ClassOfWarrantOrRightOutstandingWeightedAverageRemainingContractualTerm" xlink:type="locator"/>
    <link:label xlink:label="aipt_ClassOfWarrantOrRightOutstandingWeightedAverageRemainingContractualTerm-label" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Weighted average remaining life, warrants (Year)</link:label>
    <link:label xlink:label="aipt_ClassOfWarrantOrRightOutstandingWeightedAverageRemainingContractualTerm-label" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">Weighted average remaining contractual term for warrants outstanding, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days.</link:label>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="aipt_ClassOfWarrantOrRightOutstandingWeightedAverageRemainingContractualTerm" xlink:to="aipt_ClassOfWarrantOrRightOutstandingWeightedAverageRemainingContractualTerm-label" xlink:type="arc"/>
    <link:loc xlink:href="aipt-20180630.xsd#aipt_StockOptions2011Member" xlink:label="aipt_StockOptions2011Member" xlink:type="locator"/>
    <link:label xlink:label="aipt_StockOptions2011Member-label" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Stock Options 2011 [Member]</link:label>
    <link:label xlink:label="aipt_StockOptions2011Member-label" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">Represents stock options in 2011.</link:label>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="aipt_StockOptions2011Member" xlink:to="aipt_StockOptions2011Member-label" xlink:type="arc"/>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_MarketableSecuritiesPolicy" xlink:label="us-gaap_MarketableSecuritiesPolicy" xlink:type="locator"/>
    <link:label xlink:label="us-gaap_MarketableSecuritiesPolicy-label" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Marketable Securities, Policy [Policy Text Block]</link:label>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_MarketableSecuritiesPolicy" xlink:to="us-gaap_MarketableSecuritiesPolicy-label" xlink:type="arc"/>
    <link:loc xlink:href="aipt-20180630.xsd#aipt_StockOptions2013Member" xlink:label="aipt_StockOptions2013Member" xlink:type="locator"/>
    <link:label xlink:label="aipt_StockOptions2013Member-label" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Stock Options 2013 [Member]</link:label>
    <link:label xlink:label="aipt_StockOptions2013Member-label" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">Represents the stock options in 2013.</link:label>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="aipt_StockOptions2013Member" xlink:to="aipt_StockOptions2013Member-label" xlink:type="arc"/>
    <link:loc xlink:href="aipt-20180630.xsd#aipt_StockOptions2012Member" xlink:label="aipt_StockOptions2012Member" xlink:type="locator"/>
    <link:label xlink:label="aipt_StockOptions2012Member-label" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Stock Options 2012 [Member]</link:label>
    <link:label xlink:label="aipt_StockOptions2012Member-label" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">Represents the stock options in 2012.</link:label>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="aipt_StockOptions2012Member" xlink:to="aipt_StockOptions2012Member-label" xlink:type="arc"/>
    <link:loc xlink:href="aipt-20180630.xsd#aipt_StockOptions2015Member" xlink:label="aipt_StockOptions2015Member" xlink:type="locator"/>
    <link:label xlink:label="aipt_StockOptions2015Member-label" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Stock Options 2015 [Member]</link:label>
    <link:label xlink:label="aipt_StockOptions2015Member-label" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">Represents the stock options in 2015.</link:label>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="aipt_StockOptions2015Member" xlink:to="aipt_StockOptions2015Member-label" xlink:type="arc"/>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_ConcentrationRiskCreditRisk" xlink:label="us-gaap_ConcentrationRiskCreditRisk" xlink:type="locator"/>
    <link:label xlink:label="us-gaap_ConcentrationRiskCreditRisk-label" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Concentration Risk, Credit Risk, Policy [Policy Text Block]</link:label>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_ConcentrationRiskCreditRisk" xlink:to="us-gaap_ConcentrationRiskCreditRisk-label" xlink:type="arc"/>
    <link:loc xlink:href="aipt-20180630.xsd#aipt_StockOptions2014Member" xlink:label="aipt_StockOptions2014Member" xlink:type="locator"/>
    <link:label xlink:label="aipt_StockOptions2014Member-label" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Stock Options 2014 [Member]</link:label>
    <link:label xlink:label="aipt_StockOptions2014Member-label" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">Represents the stock options in 2014.</link:label>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="aipt_StockOptions2014Member" xlink:to="aipt_StockOptions2014Member-label" xlink:type="arc"/>
    <link:loc xlink:href="aipt-20180630.xsd#aipt_WarrantThirteenMember" xlink:label="aipt_WarrantThirteenMember" xlink:type="locator"/>
    <link:label xlink:label="aipt_WarrantThirteenMember-label" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Warrant Thirteen [Member]</link:label>
    <link:label xlink:label="aipt_WarrantThirteenMember-label" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">Represents warrant thirteen.</link:label>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="aipt_WarrantThirteenMember" xlink:to="aipt_WarrantThirteenMember-label" xlink:type="arc"/>
    <link:loc xlink:href="aipt-20180630.xsd#aipt_StockOptions2016Member" xlink:label="aipt_StockOptions2016Member" xlink:type="locator"/>
    <link:label xlink:label="aipt_StockOptions2016Member-label" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Stock Options 2016 [Member]</link:label>
    <link:label xlink:label="aipt_StockOptions2016Member-label" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">Represents the stock options in 2016.</link:label>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="aipt_StockOptions2016Member" xlink:to="aipt_StockOptions2016Member-label" xlink:type="arc"/>
    <link:loc xlink:href="aipt-20180630.xsd#aipt_ProceedsFromRedemptionOfCertificatesOfDeposits" xlink:label="aipt_ProceedsFromRedemptionOfCertificatesOfDeposits" xlink:type="locator"/>
    <link:label xlink:label="aipt_ProceedsFromRedemptionOfCertificatesOfDeposits-label" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Redemption of certificates of deposit</link:label>
    <link:label xlink:label="aipt_ProceedsFromRedemptionOfCertificatesOfDeposits-label" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">The cash inflow associated with the redemption of certificates of deposits.</link:label>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="aipt_ProceedsFromRedemptionOfCertificatesOfDeposits" xlink:to="aipt_ProceedsFromRedemptionOfCertificatesOfDeposits-label" xlink:type="arc"/>
    <link:loc xlink:href="aipt-20180630.xsd#aipt_OptionsAndWarrantsMember" xlink:label="aipt_OptionsAndWarrantsMember" xlink:type="locator"/>
    <link:label xlink:label="aipt_OptionsAndWarrantsMember-label" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Options and Warrants [Member]</link:label>
    <link:label xlink:label="aipt_OptionsAndWarrantsMember-label" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">Represents options and warrants.</link:label>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="aipt_OptionsAndWarrantsMember" xlink:to="aipt_OptionsAndWarrantsMember-label" xlink:type="arc"/>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_ShippingAndHandlingCostPolicyTextBlock" xlink:label="us-gaap_ShippingAndHandlingCostPolicyTextBlock" xlink:type="locator"/>
    <link:label xlink:label="us-gaap_ShippingAndHandlingCostPolicyTextBlock-label" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Shipping and Handling Cost, Policy [Policy Text Block]</link:label>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_ShippingAndHandlingCostPolicyTextBlock" xlink:to="us-gaap_ShippingAndHandlingCostPolicyTextBlock-label" xlink:type="arc"/>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_EquityMethodInvestmentsDisclosureTextBlock" xlink:label="us-gaap_EquityMethodInvestmentsDisclosureTextBlock" xlink:type="locator"/>
    <link:label xlink:label="us-gaap_EquityMethodInvestmentsDisclosureTextBlock-label" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Equity Method Investments and Joint Ventures Disclosure [Text Block]</link:label>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_EquityMethodInvestmentsDisclosureTextBlock" xlink:to="us-gaap_EquityMethodInvestmentsDisclosureTextBlock-label" xlink:type="arc"/>
    <link:loc xlink:href="aipt-20180630.xsd#aipt_PreferredStock1Member" xlink:label="aipt_PreferredStock1Member" xlink:type="locator"/>
    <link:label xlink:label="aipt_PreferredStock1Member-label" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Preferred Stock 1 [Member]</link:label>
    <link:label xlink:label="aipt_PreferredStock1Member-label" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">Represents the preferred stock.</link:label>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="aipt_PreferredStock1Member" xlink:to="aipt_PreferredStock1Member-label" xlink:type="arc"/>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_EquityMethodInvestmentsTextBlock" xlink:label="us-gaap_EquityMethodInvestmentsTextBlock" xlink:type="locator"/>
    <link:label xlink:label="us-gaap_EquityMethodInvestmentsTextBlock-label" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Equity Method Investments [Table Text Block]</link:label>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_EquityMethodInvestmentsTextBlock" xlink:to="us-gaap_EquityMethodInvestmentsTextBlock-label" xlink:type="arc"/>
    <link:loc xlink:href="aipt-20180630.xsd#aipt_LesseeLeasingArrangementsOperatingLeasesTermsOfContractCancellation" xlink:label="aipt_LesseeLeasingArrangementsOperatingLeasesTermsOfContractCancellation" xlink:type="locator"/>
    <link:label xlink:label="aipt_LesseeLeasingArrangementsOperatingLeasesTermsOfContractCancellation-label" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">aipt_LesseeLeasingArrangementsOperatingLeasesTermsOfContractCancellation</link:label>
    <link:label xlink:label="aipt_LesseeLeasingArrangementsOperatingLeasesTermsOfContractCancellation-label" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Lessee Leasing Arrangements Operating Leases Terms of Contract Cancellation</link:label>
    <link:label xlink:label="aipt_LesseeLeasingArrangementsOperatingLeasesTermsOfContractCancellation-label" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">Term of the lessee's leasing arrangement cancellation in years.</link:label>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="aipt_LesseeLeasingArrangementsOperatingLeasesTermsOfContractCancellation" xlink:to="aipt_LesseeLeasingArrangementsOperatingLeasesTermsOfContractCancellation-label" xlink:type="arc"/>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_PaymentsForRepurchaseOfConvertiblePreferredStock" xlink:label="us-gaap_PaymentsForRepurchaseOfConvertiblePreferredStock" xlink:type="locator"/>
    <link:label xlink:label="us-gaap_PaymentsForRepurchaseOfConvertiblePreferredStock-label" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">us-gaap_PaymentsForRepurchaseOfConvertiblePreferredStock</link:label>
    <link:label xlink:label="us-gaap_PaymentsForRepurchaseOfConvertiblePreferredStock-label" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Payments for Repurchase of Convertible Preferred Stock</link:label>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_PaymentsForRepurchaseOfConvertiblePreferredStock" xlink:to="us-gaap_PaymentsForRepurchaseOfConvertiblePreferredStock-label" xlink:type="arc"/>
    <link:loc xlink:href="aipt-20180630.xsd#aipt_NumberOfEqualInstallmentsOptionsAreExpectedToVest" xlink:label="aipt_NumberOfEqualInstallmentsOptionsAreExpectedToVest" xlink:type="locator"/>
    <link:label xlink:label="aipt_NumberOfEqualInstallmentsOptionsAreExpectedToVest-label" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">aipt_NumberOfEqualInstallmentsOptionsAreExpectedToVest</link:label>
    <link:label xlink:label="aipt_NumberOfEqualInstallmentsOptionsAreExpectedToVest-label" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Number of Equal Installments Options are Expected to Vest</link:label>
    <link:label xlink:label="aipt_NumberOfEqualInstallmentsOptionsAreExpectedToVest-label" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">The number of equal installments in which options are expected to vest.</link:label>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="aipt_NumberOfEqualInstallmentsOptionsAreExpectedToVest" xlink:to="aipt_NumberOfEqualInstallmentsOptionsAreExpectedToVest-label" xlink:type="arc"/>
    <link:loc xlink:href="aipt-20180630.xsd#aipt_ExchangeFromSeriesBWarrantsToWarrantSharesMember" xlink:label="aipt_ExchangeFromSeriesBWarrantsToWarrantSharesMember" xlink:type="locator"/>
    <link:label xlink:label="aipt_ExchangeFromSeriesBWarrantsToWarrantSharesMember-label" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Exchange from Series B Warrants to Warrant Shares [Member]</link:label>
    <link:label xlink:label="aipt_ExchangeFromSeriesBWarrantsToWarrantSharesMember-label" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">Represents the exchange of series B warrants to warrant shares.</link:label>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="aipt_ExchangeFromSeriesBWarrantsToWarrantSharesMember" xlink:to="aipt_ExchangeFromSeriesBWarrantsToWarrantSharesMember-label" xlink:type="arc"/>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_ProceedsFromIssuanceOrSaleOfEquity" xlink:label="us-gaap_ProceedsFromIssuanceOrSaleOfEquity" xlink:type="locator"/>
    <link:label xlink:label="us-gaap_ProceedsFromIssuanceOrSaleOfEquity-label" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">us-gaap_ProceedsFromIssuanceOrSaleOfEquity</link:label>
    <link:label xlink:label="us-gaap_ProceedsFromIssuanceOrSaleOfEquity-label" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Proceeds from Issuance or Sale of Equity, Total</link:label>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_ProceedsFromIssuanceOrSaleOfEquity" xlink:to="us-gaap_ProceedsFromIssuanceOrSaleOfEquity-label" xlink:type="arc"/>
    <link:loc xlink:href="aipt-20180630.xsd#aipt_VicePresidentOfSalesMember" xlink:label="aipt_VicePresidentOfSalesMember" xlink:type="locator"/>
    <link:label xlink:label="aipt_VicePresidentOfSalesMember-label" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Vice President of Sales [Member]</link:label>
    <link:label xlink:label="aipt_VicePresidentOfSalesMember-label" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">Represents the vice president of sales of the reporting entity.</link:label>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="aipt_VicePresidentOfSalesMember" xlink:to="aipt_VicePresidentOfSalesMember-label" xlink:type="arc"/>
    <link:loc xlink:href="aipt-20180630.xsd#aipt_SeriesBWarrantsMember" xlink:label="aipt_SeriesBWarrantsMember" xlink:type="locator"/>
    <link:label xlink:label="aipt_SeriesBWarrantsMember-label" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Series B Warrants [Member]</link:label>
    <link:label xlink:label="aipt_SeriesBWarrantsMember-label" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">Represent series B warrants.</link:label>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="aipt_SeriesBWarrantsMember" xlink:to="aipt_SeriesBWarrantsMember-label" xlink:type="arc"/>
    <link:loc xlink:href="aipt-20180630.xsd#aipt_InvestmentSecuritiesAndOtherComprehensiveIncomelossTextBlock" xlink:label="aipt_InvestmentSecuritiesAndOtherComprehensiveIncomelossTextBlock" xlink:type="locator"/>
    <link:label xlink:label="aipt_InvestmentSecuritiesAndOtherComprehensiveIncomelossTextBlock-label" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Investment Securities and Other Comprehensive Income/(Loss) [Text Block]</link:label>
    <link:label xlink:label="aipt_InvestmentSecuritiesAndOtherComprehensiveIncomelossTextBlock-label" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">The entire disclosure for investments in certain debt and equity securities, and other comprehensive income/(loss).</link:label>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="aipt_InvestmentSecuritiesAndOtherComprehensiveIncomelossTextBlock" xlink:to="aipt_InvestmentSecuritiesAndOtherComprehensiveIncomelossTextBlock-label" xlink:type="arc"/>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_ProceedsFromWarrantExercises" xlink:label="us-gaap_ProceedsFromWarrantExercises" xlink:type="locator"/>
    <link:label xlink:label="us-gaap_ProceedsFromWarrantExercises-label" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Proceeds from exercise of warrants into common stock</link:label>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_ProceedsFromWarrantExercises" xlink:to="us-gaap_ProceedsFromWarrantExercises-label" xlink:type="arc"/>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_ProceedsFromIssuanceOfConvertiblePreferredStock" xlink:label="us-gaap_ProceedsFromIssuanceOfConvertiblePreferredStock" xlink:type="locator"/>
    <link:label xlink:label="us-gaap_ProceedsFromIssuanceOfConvertiblePreferredStock-label" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Net proceeds from issuance of preferred stock</link:label>
    <link:label xlink:label="us-gaap_ProceedsFromIssuanceOfConvertiblePreferredStock-label" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Proceeds from Issuance of Convertible Preferred Stock</link:label>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_ProceedsFromIssuanceOfConvertiblePreferredStock" xlink:to="us-gaap_ProceedsFromIssuanceOfConvertiblePreferredStock-label" xlink:type="arc"/>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_RetainedEarningsMember" xlink:label="us-gaap_RetainedEarningsMember" xlink:type="locator"/>
    <link:label xlink:label="us-gaap_RetainedEarningsMember-label" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Retained Earnings [Member]</link:label>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_RetainedEarningsMember" xlink:to="us-gaap_RetainedEarningsMember-label" xlink:type="arc"/>
    <link:loc xlink:href="aipt-20180630.xsd#aipt_ShareExchangeAgreementNumberOfSharesHeldInEscrow" xlink:label="aipt_ShareExchangeAgreementNumberOfSharesHeldInEscrow" xlink:type="locator"/>
    <link:label xlink:label="aipt_ShareExchangeAgreementNumberOfSharesHeldInEscrow-label" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">aipt_ShareExchangeAgreementNumberOfSharesHeldInEscrow</link:label>
    <link:label xlink:label="aipt_ShareExchangeAgreementNumberOfSharesHeldInEscrow-label" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Share Exchange Agreement, Number of Shares Held in Escrow</link:label>
    <link:label xlink:label="aipt_ShareExchangeAgreementNumberOfSharesHeldInEscrow-label" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">Represents the number of shares held in escrow under a share exchange agreement.</link:label>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="aipt_ShareExchangeAgreementNumberOfSharesHeldInEscrow" xlink:to="aipt_ShareExchangeAgreementNumberOfSharesHeldInEscrow-label" xlink:type="arc"/>
    <link:loc xlink:href="aipt-20180630.xsd#aipt_ClassOfWarrantOrRightTerm" xlink:label="aipt_ClassOfWarrantOrRightTerm" xlink:type="locator"/>
    <link:label xlink:label="aipt_ClassOfWarrantOrRightTerm-label" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">aipt_ClassOfWarrantOrRightTerm</link:label>
    <link:label xlink:label="aipt_ClassOfWarrantOrRightTerm-label" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Class of Warrant or Right Term</link:label>
    <link:label xlink:label="aipt_ClassOfWarrantOrRightTerm-label" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">Represents the period of time, following the issuance date, after which the warrants will terminate.</link:label>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="aipt_ClassOfWarrantOrRightTerm" xlink:to="aipt_ClassOfWarrantOrRightTerm-label" xlink:type="arc"/>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_ProceedsFromIssuanceOfCommonStock" xlink:label="us-gaap_ProceedsFromIssuanceOfCommonStock" xlink:type="locator"/>
    <link:label xlink:label="us-gaap_ProceedsFromIssuanceOfCommonStock-label" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Issuance of common stock</link:label>
    <link:label xlink:label="us-gaap_ProceedsFromIssuanceOfCommonStock-label" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Net proceeds from issuance of common stock</link:label>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_ProceedsFromIssuanceOfCommonStock" xlink:to="us-gaap_ProceedsFromIssuanceOfCommonStock-label" xlink:type="arc"/>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_StateAndLocalIncomeTaxExpenseBenefitContinuingOperations" xlink:label="us-gaap_StateAndLocalIncomeTaxExpenseBenefitContinuingOperations" xlink:type="locator"/>
    <link:label xlink:label="us-gaap_StateAndLocalIncomeTaxExpenseBenefitContinuingOperations-label" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">us-gaap_StateAndLocalIncomeTaxExpenseBenefitContinuingOperations</link:label>
    <link:label xlink:label="us-gaap_StateAndLocalIncomeTaxExpenseBenefitContinuingOperations-label" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">State and Local Income Tax Expense (Benefit), Continuing Operations, Total</link:label>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_StateAndLocalIncomeTaxExpenseBenefitContinuingOperations" xlink:to="us-gaap_StateAndLocalIncomeTaxExpenseBenefitContinuingOperations-label" xlink:type="arc"/>
    <link:loc xlink:href="aipt-20180630.xsd#aipt_CashLessExerciseFormulaDefinitionOfLetterCInTheFormulaClosingBidPriceNumberOfTradingDaysPriorToTheTimeOfExercise" xlink:label="aipt_CashLessExerciseFormulaDefinitionOfLetterCInTheFormulaClosingBidPriceNumberOfTradingDaysPriorToTheTimeOfExercise" xlink:type="locator"/>
    <link:label xlink:label="aipt_CashLessExerciseFormulaDefinitionOfLetterCInTheFormulaClosingBidPriceNumberOfTradingDaysPriorToTheTimeOfExercise-label" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">aipt_CashLessExerciseFormulaDefinitionOfLetterCInTheFormulaClosingBidPriceNumberOfTradingDaysPriorToTheTimeOfExercise</link:label>
    <link:label xlink:label="aipt_CashLessExerciseFormulaDefinitionOfLetterCInTheFormulaClosingBidPriceNumberOfTradingDaysPriorToTheTimeOfExercise-label" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Cash Less Exercise Formula Definition of Letter C in the Formula Closing Bid Price Number of Trading Days Prior to the Time of Exercise</link:label>
    <link:label xlink:label="aipt_CashLessExerciseFormulaDefinitionOfLetterCInTheFormulaClosingBidPriceNumberOfTradingDaysPriorToTheTimeOfExercise-label" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">In the computation of the cashless exercise formula--"Total Shares = (A x B) / C"--this element represents the number of trading days prior to the time of exercise for which day the closing bid price is used as the letter "C" in the formula.</link:label>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="aipt_CashLessExerciseFormulaDefinitionOfLetterCInTheFormulaClosingBidPriceNumberOfTradingDaysPriorToTheTimeOfExercise" xlink:to="aipt_CashLessExerciseFormulaDefinitionOfLetterCInTheFormulaClosingBidPriceNumberOfTradingDaysPriorToTheTimeOfExercise-label" xlink:type="arc"/>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_AdditionalPaidInCapitalMember" xlink:label="us-gaap_AdditionalPaidInCapitalMember" xlink:type="locator"/>
    <link:label xlink:label="us-gaap_AdditionalPaidInCapitalMember-label" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Additional Paid-in Capital [Member]</link:label>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_AdditionalPaidInCapitalMember" xlink:to="us-gaap_AdditionalPaidInCapitalMember-label" xlink:type="arc"/>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_CommonStockMember" xlink:label="us-gaap_CommonStockMember" xlink:type="locator"/>
    <link:label xlink:label="us-gaap_CommonStockMember-label" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Common Stock [Member]</link:label>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_CommonStockMember" xlink:to="us-gaap_CommonStockMember-label" xlink:type="arc"/>
    <link:loc xlink:href="aipt-20180630.xsd#aipt_CashLessExerciseFormulaClosingBidPricePerShareMinimumToBeUsedInTheFormula" xlink:label="aipt_CashLessExerciseFormulaClosingBidPricePerShareMinimumToBeUsedInTheFormula" xlink:type="locator"/>
    <link:label xlink:label="aipt_CashLessExerciseFormulaClosingBidPricePerShareMinimumToBeUsedInTheFormula-label" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">aipt_CashLessExerciseFormulaClosingBidPricePerShareMinimumToBeUsedInTheFormula</link:label>
    <link:label xlink:label="aipt_CashLessExerciseFormulaClosingBidPricePerShareMinimumToBeUsedInTheFormula-label" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Cash Less Exercise Formula Closing Bid Price Per Share Minimum to Be Used in the Formula</link:label>
    <link:label xlink:label="aipt_CashLessExerciseFormulaClosingBidPricePerShareMinimumToBeUsedInTheFormula-label" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">In the computation of the cashless exercise formula--"Total Shares = (A x B) / C"--this element represents the closing bid price, which is used as the letter "C" in the formula, provided that in no event may "C" be less than this amount.</link:label>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="aipt_CashLessExerciseFormulaClosingBidPricePerShareMinimumToBeUsedInTheFormula" xlink:to="aipt_CashLessExerciseFormulaClosingBidPricePerShareMinimumToBeUsedInTheFormula-label" xlink:type="arc"/>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_PreferredStockMember" xlink:label="us-gaap_PreferredStockMember" xlink:type="locator"/>
    <link:label xlink:label="us-gaap_PreferredStockMember-label" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Preferred Stock [Member]</link:label>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_PreferredStockMember" xlink:to="us-gaap_PreferredStockMember-label" xlink:type="arc"/>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_FederalIncomeTaxExpenseBenefitContinuingOperations" xlink:label="us-gaap_FederalIncomeTaxExpenseBenefitContinuingOperations" xlink:type="locator"/>
    <link:label xlink:label="us-gaap_FederalIncomeTaxExpenseBenefitContinuingOperations-label" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">us-gaap_FederalIncomeTaxExpenseBenefitContinuingOperations</link:label>
    <link:label xlink:label="us-gaap_FederalIncomeTaxExpenseBenefitContinuingOperations-label" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Federal Income Tax Expense (Benefit), Continuing Operations, Total</link:label>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_FederalIncomeTaxExpenseBenefitContinuingOperations" xlink:to="us-gaap_FederalIncomeTaxExpenseBenefitContinuingOperations-label" xlink:type="arc"/>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_StatementEquityComponentsAxis" xlink:label="us-gaap_StatementEquityComponentsAxis" xlink:type="locator"/>
    <link:label xlink:label="us-gaap_StatementEquityComponentsAxis-label" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Equity Components [Axis]</link:label>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_StatementEquityComponentsAxis" xlink:to="us-gaap_StatementEquityComponentsAxis-label" xlink:type="arc"/>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_EquityComponentDomain" xlink:label="us-gaap_EquityComponentDomain" xlink:type="locator"/>
    <link:label xlink:label="us-gaap_EquityComponentDomain-label" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Equity Component [Domain]</link:label>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_EquityComponentDomain" xlink:to="us-gaap_EquityComponentDomain-label" xlink:type="arc"/>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_ClassOfWarrantOrRightExercisePriceOfWarrantsOrRights1" xlink:label="us-gaap_ClassOfWarrantOrRightExercisePriceOfWarrantsOrRights1" xlink:type="locator"/>
    <link:label xlink:label="us-gaap_ClassOfWarrantOrRightExercisePriceOfWarrantsOrRights1-label" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Warrant exercises, exercise price per share (in dollars per share)</link:label>
    <link:label xlink:label="us-gaap_ClassOfWarrantOrRightExercisePriceOfWarrantsOrRights1-label" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Class of Warrant or Right, Exercise Price of Warrants or Rights</link:label>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_ClassOfWarrantOrRightExercisePriceOfWarrantsOrRights1" xlink:to="us-gaap_ClassOfWarrantOrRightExercisePriceOfWarrantsOrRights1-label" xlink:type="arc"/>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_ClassOfWarrantOrRightAxis" xlink:label="us-gaap_ClassOfWarrantOrRightAxis" xlink:type="locator"/>
    <link:label xlink:label="us-gaap_ClassOfWarrantOrRightAxis-label" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Class of Warrant or Right [Axis]</link:label>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_ClassOfWarrantOrRightAxis" xlink:to="us-gaap_ClassOfWarrantOrRightAxis-label" xlink:type="arc"/>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_ClassOfWarrantOrRightDomain" xlink:label="us-gaap_ClassOfWarrantOrRightDomain" xlink:type="locator"/>
    <link:label xlink:label="us-gaap_ClassOfWarrantOrRightDomain-label" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Class of Warrant or Right [Domain]</link:label>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_ClassOfWarrantOrRightDomain" xlink:to="us-gaap_ClassOfWarrantOrRightDomain-label" xlink:type="arc"/>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_ClassOfWarrantOrRightNumberOfSecuritiesCalledByEachWarrantOrRight" xlink:label="us-gaap_ClassOfWarrantOrRightNumberOfSecuritiesCalledByEachWarrantOrRight" xlink:type="locator"/>
    <link:label xlink:label="us-gaap_ClassOfWarrantOrRightNumberOfSecuritiesCalledByEachWarrantOrRight-label" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">us-gaap_ClassOfWarrantOrRightNumberOfSecuritiesCalledByEachWarrantOrRight</link:label>
    <link:label xlink:label="us-gaap_ClassOfWarrantOrRightNumberOfSecuritiesCalledByEachWarrantOrRight-label" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Class of Warrant or Right, Number of Securities Called by Each Warrant or Right</link:label>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_ClassOfWarrantOrRightNumberOfSecuritiesCalledByEachWarrantOrRight" xlink:to="us-gaap_ClassOfWarrantOrRightNumberOfSecuritiesCalledByEachWarrantOrRight-label" xlink:type="arc"/>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_NotesPayable" xlink:label="us-gaap_NotesPayable" xlink:type="locator"/>
    <link:label xlink:label="us-gaap_NotesPayable-label" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">us-gaap_NotesPayable</link:label>
    <link:label xlink:label="us-gaap_NotesPayable-label" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Notes Payable, Total</link:label>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_NotesPayable" xlink:to="us-gaap_NotesPayable-label" xlink:type="arc"/>
    <link:loc xlink:href="aipt-20180630.xsd#aipt_ClassOfWarrantOrRightCashLessExerciseCommonStockPriceThatWouldResultInADilutiveExercise" xlink:label="aipt_ClassOfWarrantOrRightCashLessExerciseCommonStockPriceThatWouldResultInADilutiveExercise" xlink:type="locator"/>
    <link:label xlink:label="aipt_ClassOfWarrantOrRightCashLessExerciseCommonStockPriceThatWouldResultInADilutiveExercise-label" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">aipt_ClassOfWarrantOrRightCashLessExerciseCommonStockPriceThatWouldResultInADilutiveExercise</link:label>
    <link:label xlink:label="aipt_ClassOfWarrantOrRightCashLessExerciseCommonStockPriceThatWouldResultInADilutiveExercise-label" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Class of Warrant or Right Cash less Exercise Common Stock Price That Would Result in a Dilutive Exercise</link:label>
    <link:label xlink:label="aipt_ClassOfWarrantOrRightCashLessExerciseCommonStockPriceThatWouldResultInADilutiveExercise-label" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">Represents the closing bid price two days prior to the time of a cashless exercise of warrants or rights, which price would result in a dilutive exercise of such warrants or rights.</link:label>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="aipt_ClassOfWarrantOrRightCashLessExerciseCommonStockPriceThatWouldResultInADilutiveExercise" xlink:to="aipt_ClassOfWarrantOrRightCashLessExerciseCommonStockPriceThatWouldResultInADilutiveExercise-label" xlink:type="arc"/>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_ClassOfWarrantOrRightOutstanding" xlink:label="us-gaap_ClassOfWarrantOrRightOutstanding" xlink:type="locator"/>
    <link:label xlink:label="us-gaap_ClassOfWarrantOrRightOutstanding-label" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Shares, warrants (in shares)</link:label>
    <link:label xlink:label="us-gaap_ClassOfWarrantOrRightOutstanding-label" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Class of Warrant or Right, Outstanding</link:label>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_ClassOfWarrantOrRightOutstanding" xlink:to="us-gaap_ClassOfWarrantOrRightOutstanding-label" xlink:type="arc"/>
    <link:loc xlink:href="aipt-20180630.xsd#aipt_InterimFinancialStatementsPolicyPolicyTextBlock" xlink:label="aipt_InterimFinancialStatementsPolicyPolicyTextBlock" xlink:type="locator"/>
    <link:label xlink:label="aipt_InterimFinancialStatementsPolicyPolicyTextBlock-label" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Interim Financial Statements, Policy [Policy Text Block]</link:label>
    <link:label xlink:label="aipt_InterimFinancialStatementsPolicyPolicyTextBlock-label" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">Disclosure of accounting policy for interim financial statements.</link:label>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="aipt_InterimFinancialStatementsPolicyPolicyTextBlock" xlink:to="aipt_InterimFinancialStatementsPolicyPolicyTextBlock-label" xlink:type="arc"/>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_ClassOfWarrantOrRightNumberOfSecuritiesCalledByWarrantsOrRights" xlink:label="us-gaap_ClassOfWarrantOrRightNumberOfSecuritiesCalledByWarrantsOrRights" xlink:type="locator"/>
    <link:label xlink:label="us-gaap_ClassOfWarrantOrRightNumberOfSecuritiesCalledByWarrantsOrRights-label" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">us-gaap_ClassOfWarrantOrRightNumberOfSecuritiesCalledByWarrantsOrRights</link:label>
    <link:label xlink:label="us-gaap_ClassOfWarrantOrRightNumberOfSecuritiesCalledByWarrantsOrRights-label" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Class of Warrant or Right, Number of Securities Called by Warrants or Rights</link:label>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_ClassOfWarrantOrRightNumberOfSecuritiesCalledByWarrantsOrRights" xlink:to="us-gaap_ClassOfWarrantOrRightNumberOfSecuritiesCalledByWarrantsOrRights-label" xlink:type="arc"/>
    <link:loc xlink:href="aipt-20180630.xsd#aipt_UnitPurchaseOptionNumberOfUnitsAvailableForUnderwriterToPurchasePercentage" xlink:label="aipt_UnitPurchaseOptionNumberOfUnitsAvailableForUnderwriterToPurchasePercentage" xlink:type="locator"/>
    <link:label xlink:label="aipt_UnitPurchaseOptionNumberOfUnitsAvailableForUnderwriterToPurchasePercentage-label" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">aipt_UnitPurchaseOptionNumberOfUnitsAvailableForUnderwriterToPurchasePercentage</link:label>
    <link:label xlink:label="aipt_UnitPurchaseOptionNumberOfUnitsAvailableForUnderwriterToPurchasePercentage-label" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Unit Purchase Option Number of Units Available for Underwriter to Purchase, Percentage</link:label>
    <link:label xlink:label="aipt_UnitPurchaseOptionNumberOfUnitsAvailableForUnderwriterToPurchasePercentage-label" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">Represents the percentage of the units sold in the offering that are available for the underwriter to purchase pursuant to the unit purchase option agreement related to the underwriting agreement.</link:label>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="aipt_UnitPurchaseOptionNumberOfUnitsAvailableForUnderwriterToPurchasePercentage" xlink:to="aipt_UnitPurchaseOptionNumberOfUnitsAvailableForUnderwriterToPurchasePercentage-label" xlink:type="arc"/>
    <link:loc xlink:href="aipt-20180630.xsd#aipt_BeneficialOwnershipLimitationPercentage" xlink:label="aipt_BeneficialOwnershipLimitationPercentage" xlink:type="locator"/>
    <link:label xlink:label="aipt_BeneficialOwnershipLimitationPercentage-label" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">aipt_BeneficialOwnershipLimitationPercentage</link:label>
    <link:label xlink:label="aipt_BeneficialOwnershipLimitationPercentage-label" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Beneficial Ownership Limitation Percentage</link:label>
    <link:label xlink:label="aipt_BeneficialOwnershipLimitationPercentage-label" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">This element represents percentage of beneficial ownership limitation.</link:label>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="aipt_BeneficialOwnershipLimitationPercentage" xlink:to="aipt_BeneficialOwnershipLimitationPercentage-label" xlink:type="arc"/>
    <link:loc xlink:href="aipt-20180630.xsd#aipt_UnitPurchaseOptionNumberOfUnitsAvailableForUnderwriterToPurchase" xlink:label="aipt_UnitPurchaseOptionNumberOfUnitsAvailableForUnderwriterToPurchase" xlink:type="locator"/>
    <link:label xlink:label="aipt_UnitPurchaseOptionNumberOfUnitsAvailableForUnderwriterToPurchase-label" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">aipt_UnitPurchaseOptionNumberOfUnitsAvailableForUnderwriterToPurchase</link:label>
    <link:label xlink:label="aipt_UnitPurchaseOptionNumberOfUnitsAvailableForUnderwriterToPurchase-label" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Unit Purchase Option Number of Units Available For Underwriter to Purchase</link:label>
    <link:label xlink:label="aipt_UnitPurchaseOptionNumberOfUnitsAvailableForUnderwriterToPurchase-label" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">Represents the number of units sold in the offering that are available for the underwriter to purchase pursuant to the unit purchase option agreement related to the underwriting agreement.</link:label>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="aipt_UnitPurchaseOptionNumberOfUnitsAvailableForUnderwriterToPurchase" xlink:to="aipt_UnitPurchaseOptionNumberOfUnitsAvailableForUnderwriterToPurchase-label" xlink:type="arc"/>
    <link:loc xlink:href="aipt-20180630.xsd#aipt_ExchangeUnitsMember" xlink:label="aipt_ExchangeUnitsMember" xlink:type="locator"/>
    <link:label xlink:label="aipt_ExchangeUnitsMember-label" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Exchange Units [Member]</link:label>
    <link:label xlink:label="aipt_ExchangeUnitsMember-label" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">Name of award under the Unit Purchase Option Agreement.</link:label>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="aipt_ExchangeUnitsMember" xlink:to="aipt_ExchangeUnitsMember-label" xlink:type="arc"/>
    <link:loc xlink:href="aipt-20180630.xsd#aipt_Warrants2014Member" xlink:label="aipt_Warrants2014Member" xlink:type="locator"/>
    <link:label xlink:label="aipt_Warrants2014Member-label" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Warrants 2014 [Member]</link:label>
    <link:label xlink:label="aipt_Warrants2014Member-label" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">Represents warrants 2014.</link:label>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="aipt_Warrants2014Member" xlink:to="aipt_Warrants2014Member-label" xlink:type="arc"/>
    <link:loc xlink:href="aipt-20180630.xsd#aipt_Warrants2013Member" xlink:label="aipt_Warrants2013Member" xlink:type="locator"/>
    <link:label xlink:label="aipt_Warrants2013Member-label" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Warrants 2013 [Member]</link:label>
    <link:label xlink:label="aipt_Warrants2013Member-label" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">Represents warrants 2013.</link:label>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="aipt_Warrants2013Member" xlink:to="aipt_Warrants2013Member-label" xlink:type="arc"/>
    <link:loc xlink:href="aipt-20180630.xsd#aipt_Warrants2015Member" xlink:label="aipt_Warrants2015Member" xlink:type="locator"/>
    <link:label xlink:label="aipt_Warrants2015Member-label" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Warrants 2015 [Member]</link:label>
    <link:label xlink:label="aipt_Warrants2015Member-label" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">Represents warrants 2015.</link:label>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="aipt_Warrants2015Member" xlink:to="aipt_Warrants2015Member-label" xlink:type="arc"/>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_StateAndLocalJurisdictionMember" xlink:label="us-gaap_StateAndLocalJurisdictionMember" xlink:type="locator"/>
    <link:label xlink:label="us-gaap_StateAndLocalJurisdictionMember-label" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">State and Local Jurisdiction [Member]</link:label>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_StateAndLocalJurisdictionMember" xlink:to="us-gaap_StateAndLocalJurisdictionMember-label" xlink:type="arc"/>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_IncomeTaxAuthorityAxis" xlink:label="us-gaap_IncomeTaxAuthorityAxis" xlink:type="locator"/>
    <link:label xlink:label="us-gaap_IncomeTaxAuthorityAxis-label" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Income Tax Authority [Axis]</link:label>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_IncomeTaxAuthorityAxis" xlink:to="us-gaap_IncomeTaxAuthorityAxis-label" xlink:type="arc"/>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_IncomeTaxAuthorityDomain" xlink:label="us-gaap_IncomeTaxAuthorityDomain" xlink:type="locator"/>
    <link:label xlink:label="us-gaap_IncomeTaxAuthorityDomain-label" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Income Tax Authority [Domain]</link:label>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_IncomeTaxAuthorityDomain" xlink:to="us-gaap_IncomeTaxAuthorityDomain-label" xlink:type="arc"/>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_DomesticCountryMember" xlink:label="us-gaap_DomesticCountryMember" xlink:type="locator"/>
    <link:label xlink:label="us-gaap_DomesticCountryMember-label" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Domestic Tax Authority [Member]</link:label>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_DomesticCountryMember" xlink:to="us-gaap_DomesticCountryMember-label" xlink:type="arc"/>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_OfficeEquipmentMember" xlink:label="us-gaap_OfficeEquipmentMember" xlink:type="locator"/>
    <link:label xlink:label="us-gaap_OfficeEquipmentMember-label" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Office Equipment [Member]</link:label>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_OfficeEquipmentMember" xlink:to="us-gaap_OfficeEquipmentMember-label" xlink:type="arc"/>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_RevenueFromContractWithCustomerTextBlock" xlink:label="us-gaap_RevenueFromContractWithCustomerTextBlock" xlink:type="locator"/>
    <link:label xlink:label="us-gaap_RevenueFromContractWithCustomerTextBlock-label" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Revenue from Contract with Customer [Text Block]</link:label>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_RevenueFromContractWithCustomerTextBlock" xlink:to="us-gaap_RevenueFromContractWithCustomerTextBlock-label" xlink:type="arc"/>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_CashAndCashEquivalentsPolicyTextBlock" xlink:label="us-gaap_CashAndCashEquivalentsPolicyTextBlock" xlink:type="locator"/>
    <link:label xlink:label="us-gaap_CashAndCashEquivalentsPolicyTextBlock-label" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Cash and Cash Equivalents, Policy [Policy Text Block]</link:label>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_CashAndCashEquivalentsPolicyTextBlock" xlink:to="us-gaap_CashAndCashEquivalentsPolicyTextBlock-label" xlink:type="arc"/>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_ReceivablesPolicyTextBlock" xlink:label="us-gaap_ReceivablesPolicyTextBlock" xlink:type="locator"/>
    <link:label xlink:label="us-gaap_ReceivablesPolicyTextBlock-label" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Receivables, Policy [Policy Text Block]</link:label>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_ReceivablesPolicyTextBlock" xlink:to="us-gaap_ReceivablesPolicyTextBlock-label" xlink:type="arc"/>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_UnrecognizedTaxBenefits" xlink:label="us-gaap_UnrecognizedTaxBenefits" xlink:type="locator"/>
    <link:label xlink:label="us-gaap_UnrecognizedTaxBenefits-label" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">us-gaap_UnrecognizedTaxBenefits</link:label>
    <link:label xlink:label="us-gaap_UnrecognizedTaxBenefits-label" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Unrecognized Tax Benefits, Ending Balance</link:label>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_UnrecognizedTaxBenefits" xlink:to="us-gaap_UnrecognizedTaxBenefits-label" xlink:type="arc"/>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_AccountingPoliciesAbstract" xlink:label="us-gaap_AccountingPoliciesAbstract" xlink:type="locator"/>
    <link:label xlink:label="us-gaap_AccountingPoliciesAbstract-label" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Accounting Policies [Abstract]</link:label>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_AccountingPoliciesAbstract" xlink:to="us-gaap_AccountingPoliciesAbstract-label" xlink:type="arc"/>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_SignificantAccountingPoliciesTextBlock" xlink:label="us-gaap_SignificantAccountingPoliciesTextBlock" xlink:type="locator"/>
    <link:label xlink:label="us-gaap_SignificantAccountingPoliciesTextBlock-label" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Significant Accounting Policies [Text Block]</link:label>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_SignificantAccountingPoliciesTextBlock" xlink:to="us-gaap_SignificantAccountingPoliciesTextBlock-label" xlink:type="arc"/>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_OpenTaxYear" xlink:label="us-gaap_OpenTaxYear" xlink:type="locator"/>
    <link:label xlink:label="us-gaap_OpenTaxYear-label" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">us-gaap_OpenTaxYear</link:label>
    <link:label xlink:label="us-gaap_OpenTaxYear-label" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Open Tax Year</link:label>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_OpenTaxYear" xlink:to="us-gaap_OpenTaxYear-label" xlink:type="arc"/>
    <link:loc xlink:href="aipt-20180630.xsd#aipt_RePricedWarrantsMember" xlink:label="aipt_RePricedWarrantsMember" xlink:type="locator"/>
    <link:label xlink:label="aipt_RePricedWarrantsMember-label" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Re-priced Warrants [Member]</link:label>
    <link:label xlink:label="aipt_RePricedWarrantsMember-label" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">Information pertaining to re-priced warrants.</link:label>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="aipt_RePricedWarrantsMember" xlink:to="aipt_RePricedWarrantsMember-label" xlink:type="arc"/>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_BasisOfAccountingPolicyPolicyTextBlock" xlink:label="us-gaap_BasisOfAccountingPolicyPolicyTextBlock" xlink:type="locator"/>
    <link:label xlink:label="us-gaap_BasisOfAccountingPolicyPolicyTextBlock-label" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Basis of Accounting, Policy [Policy Text Block]</link:label>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_BasisOfAccountingPolicyPolicyTextBlock" xlink:to="us-gaap_BasisOfAccountingPolicyPolicyTextBlock-label" xlink:type="arc"/>
    <link:loc xlink:href="aipt-20180630.xsd#aipt_StockOptionsThirtyfiveMember" xlink:label="aipt_StockOptionsThirtyfiveMember" xlink:type="locator"/>
    <link:label xlink:label="aipt_StockOptionsThirtyfiveMember-label" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Stock Options Thirty-Five [Member]</link:label>
    <link:label xlink:label="aipt_StockOptionsThirtyfiveMember-label" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">Represents information pertaining to the 35th stock options.</link:label>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="aipt_StockOptionsThirtyfiveMember" xlink:to="aipt_StockOptionsThirtyfiveMember-label" xlink:type="arc"/>
    <link:loc xlink:href="aipt-20180630.xsd#aipt_StockOptionsThirtyfourMember" xlink:label="aipt_StockOptionsThirtyfourmember" xlink:type="locator"/>
    <link:label xlink:label="aipt_StockOptionsThirtyfourmember-label" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Stock Options Thirty-Four [Member]</link:label>
    <link:label xlink:label="aipt_StockOptionsThirtyfourmember-label" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">Represents information pertaining to the 34th stock options.</link:label>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="aipt_StockOptionsThirtyfourmember" xlink:to="aipt_StockOptionsThirtyfourmember-label" xlink:type="arc"/>
    <link:loc xlink:href="aipt-20180630.xsd#aipt_BusinessAcquisitionEquityInterestIssuedOrIssuableNumberOfSharesHeldInEscrow" xlink:label="aipt_BusinessAcquisitionEquityInterestIssuedOrIssuableNumberOfSharesHeldInEscrow" xlink:type="locator"/>
    <link:label xlink:label="aipt_BusinessAcquisitionEquityInterestIssuedOrIssuableNumberOfSharesHeldInEscrow-label" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">aipt_BusinessAcquisitionEquityInterestIssuedOrIssuableNumberOfSharesHeldInEscrow</link:label>
    <link:label xlink:label="aipt_BusinessAcquisitionEquityInterestIssuedOrIssuableNumberOfSharesHeldInEscrow-label" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Business Acquisition, Equity Interest Issued or Issuable, Number of Shares Held in Escrow</link:label>
    <link:label xlink:label="aipt_BusinessAcquisitionEquityInterestIssuedOrIssuableNumberOfSharesHeldInEscrow-label" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">Number of shares of equity interests issued or issuable to acquire entity being held in escrow.</link:label>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="aipt_BusinessAcquisitionEquityInterestIssuedOrIssuableNumberOfSharesHeldInEscrow" xlink:to="aipt_BusinessAcquisitionEquityInterestIssuedOrIssuableNumberOfSharesHeldInEscrow-label" xlink:type="arc"/>
    <link:loc xlink:href="aipt-20180630.xsd#aipt_HelomicsWarrantsHeldByInvestorsMember" xlink:label="aipt_HelomicsWarrantsHeldByInvestorsMember" xlink:type="locator"/>
    <link:label xlink:label="aipt_HelomicsWarrantsHeldByInvestorsMember-label" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Helomics Warrants Held by Investors [Member]</link:label>
    <link:label xlink:label="aipt_HelomicsWarrantsHeldByInvestorsMember-label" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">Information pertaining to Helomics warrants held by investors.</link:label>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="aipt_HelomicsWarrantsHeldByInvestorsMember" xlink:to="aipt_HelomicsWarrantsHeldByInvestorsMember-label" xlink:type="arc"/>
    <link:loc xlink:href="aipt-20180630.xsd#aipt_BusinessAcquisitionEquityInterestIssuedOrIssuableNumberOfSharesHeldInEscrowPeriod" xlink:label="aipt_BusinessAcquisitionEquityInterestIssuedOrIssuableNumberOfSharesHeldInEscrowPeriod" xlink:type="locator"/>
    <link:label xlink:label="aipt_BusinessAcquisitionEquityInterestIssuedOrIssuableNumberOfSharesHeldInEscrowPeriod-label" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">aipt_BusinessAcquisitionEquityInterestIssuedOrIssuableNumberOfSharesHeldInEscrowPeriod</link:label>
    <link:label xlink:label="aipt_BusinessAcquisitionEquityInterestIssuedOrIssuableNumberOfSharesHeldInEscrowPeriod-label" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Business Acquisition, Equity Interest Issued or Issuable, Number of Shares Held in Escrow, Period</link:label>
    <link:label xlink:label="aipt_BusinessAcquisitionEquityInterestIssuedOrIssuableNumberOfSharesHeldInEscrowPeriod-label" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">Represents the period for number of shares of equity interests issued or issuable to acquire entity to be held in escrow.</link:label>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="aipt_BusinessAcquisitionEquityInterestIssuedOrIssuableNumberOfSharesHeldInEscrowPeriod" xlink:to="aipt_BusinessAcquisitionEquityInterestIssuedOrIssuableNumberOfSharesHeldInEscrowPeriod-label" xlink:type="arc"/>
    <link:loc xlink:href="aipt-20180630.xsd#aipt_StockOptionsThirtysixMember" xlink:label="aipt_StockOptionsThirtysixMember" xlink:type="locator"/>
    <link:label xlink:label="aipt_StockOptionsThirtysixMember-label" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Stock Options Thirty-Six [Member]</link:label>
    <link:label xlink:label="aipt_StockOptionsThirtysixMember-label" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">Represents information pertaining to the 36th stock options.</link:label>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="aipt_StockOptionsThirtysixMember" xlink:to="aipt_StockOptionsThirtysixMember-label" xlink:type="arc"/>
    <link:loc xlink:href="aipt-20180630.xsd#aipt_BusinessAcquisitionWarrantExchangeRatio" xlink:label="aipt_BusinessAcquisitionWarrantExchangeRatio" xlink:type="locator"/>
    <link:label xlink:label="aipt_BusinessAcquisitionWarrantExchangeRatio-label" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">aipt_BusinessAcquisitionWarrantExchangeRatio</link:label>
    <link:label xlink:label="aipt_BusinessAcquisitionWarrantExchangeRatio-label" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Business Acquisition, Warrant Exchange Ratio</link:label>
    <link:label xlink:label="aipt_BusinessAcquisitionWarrantExchangeRatio-label" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">Ratio applied to the exchange of acquiree's warrant for acquirer's warrant in a business acquisition.</link:label>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="aipt_BusinessAcquisitionWarrantExchangeRatio" xlink:to="aipt_BusinessAcquisitionWarrantExchangeRatio-label" xlink:type="arc"/>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_AccountsNotesLoansAndFinancingReceivableByReceivableTypeAxis" xlink:label="us-gaap_AccountsNotesLoansAndFinancingReceivableByReceivableTypeAxis" xlink:type="locator"/>
    <link:label xlink:label="us-gaap_AccountsNotesLoansAndFinancingReceivableByReceivableTypeAxis-label" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Receivable Type [Axis]</link:label>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_AccountsNotesLoansAndFinancingReceivableByReceivableTypeAxis" xlink:to="us-gaap_AccountsNotesLoansAndFinancingReceivableByReceivableTypeAxis-label" xlink:type="arc"/>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_ReceivableTypeDomain" xlink:label="us-gaap_ReceivableTypeDomain" xlink:type="locator"/>
    <link:label xlink:label="us-gaap_ReceivableTypeDomain-label" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Receivable [Domain]</link:label>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_ReceivableTypeDomain" xlink:to="us-gaap_ReceivableTypeDomain-label" xlink:type="arc"/>
    <link:loc xlink:href="aipt-20180630.xsd#aipt_HelomicsWarrantsHeldByOtherPartiesMember" xlink:label="aipt_HelomicsWarrantsHeldByOtherPartiesMember" xlink:type="locator"/>
    <link:label xlink:label="aipt_HelomicsWarrantsHeldByOtherPartiesMember-label" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Helomics Warrants Held by Other Parties [Member]</link:label>
    <link:label xlink:label="aipt_HelomicsWarrantsHeldByOtherPartiesMember-label" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">Information pertaining to Helomics warrants held by other parties.</link:label>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="aipt_HelomicsWarrantsHeldByOtherPartiesMember" xlink:to="aipt_HelomicsWarrantsHeldByOtherPartiesMember-label" xlink:type="arc"/>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_EarliestTaxYearMember" xlink:label="us-gaap_EarliestTaxYearMember" xlink:type="locator"/>
    <link:label xlink:label="us-gaap_EarliestTaxYearMember-label" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Earliest Tax Year [Member]</link:label>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_EarliestTaxYearMember" xlink:to="us-gaap_EarliestTaxYearMember-label" xlink:type="arc"/>
    <link:loc xlink:href="aipt-20180630.xsd#aipt_PrecisionWarrantsMember" xlink:label="aipt_PrecisionWarrantsMember" xlink:type="locator"/>
    <link:label xlink:label="aipt_PrecisionWarrantsMember-label" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Precision Warrants [Member]</link:label>
    <link:label xlink:label="aipt_PrecisionWarrantsMember-label" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">Information pertaining to Precision warrants.</link:label>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="aipt_PrecisionWarrantsMember" xlink:to="aipt_PrecisionWarrantsMember-label" xlink:type="arc"/>
    <link:loc xlink:href="aipt-20180630.xsd#aipt_BusinessAcquisitionWarrantIssuedOrIssuableExercisePrice" xlink:label="aipt_BusinessAcquisitionWarrantIssuedOrIssuableExercisePrice" xlink:type="locator"/>
    <link:label xlink:label="aipt_BusinessAcquisitionWarrantIssuedOrIssuableExercisePrice-label" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">aipt_BusinessAcquisitionWarrantIssuedOrIssuableExercisePrice</link:label>
    <link:label xlink:label="aipt_BusinessAcquisitionWarrantIssuedOrIssuableExercisePrice-label" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Business Acquisition, Warrant Issued or Issuable, Exercise Price</link:label>
    <link:label xlink:label="aipt_BusinessAcquisitionWarrantIssuedOrIssuableExercisePrice-label" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">Exercise price of warrant issued or issuable to acquire entity.</link:label>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="aipt_BusinessAcquisitionWarrantIssuedOrIssuableExercisePrice" xlink:to="aipt_BusinessAcquisitionWarrantIssuedOrIssuableExercisePrice-label" xlink:type="arc"/>
    <link:loc xlink:href="aipt-20180630.xsd#aipt_ClassOfWarrantOrRightAdditionalNumberOfSecuritiesCalledByWarrantsOrRights" xlink:label="aipt_ClassOfWarrantOrRightAdditionalNumberOfSecuritiesCalledByWarrantsOrRights" xlink:type="locator"/>
    <link:label xlink:label="aipt_ClassOfWarrantOrRightAdditionalNumberOfSecuritiesCalledByWarrantsOrRights-label" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">aipt_ClassOfWarrantOrRightAdditionalNumberOfSecuritiesCalledByWarrantsOrRights</link:label>
    <link:label xlink:label="aipt_ClassOfWarrantOrRightAdditionalNumberOfSecuritiesCalledByWarrantsOrRights-label" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Class of Warrant or Right, Additional Number of Securities Called by Warrants or Rights</link:label>
    <link:label xlink:label="aipt_ClassOfWarrantOrRightAdditionalNumberOfSecuritiesCalledByWarrantsOrRights-label" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">Additional number of securities into which the class of warrant or right may be converted. For example, but not limited to, 500,000 warrants may be converted into 1,000,000 shares.</link:label>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="aipt_ClassOfWarrantOrRightAdditionalNumberOfSecuritiesCalledByWarrantsOrRights" xlink:to="aipt_ClassOfWarrantOrRightAdditionalNumberOfSecuritiesCalledByWarrantsOrRights-label" xlink:type="arc"/>
    <link:loc xlink:href="aipt-20180630.xsd#aipt_UnitPurchaseOptionUnitsIssued" xlink:label="aipt_UnitPurchaseOptionUnitsIssued" xlink:type="locator"/>
    <link:label xlink:label="aipt_UnitPurchaseOptionUnitsIssued-label" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">aipt_UnitPurchaseOptionUnitsIssued</link:label>
    <link:label xlink:label="aipt_UnitPurchaseOptionUnitsIssued-label" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Unit Purchase Option Units Issued</link:label>
    <link:label xlink:label="aipt_UnitPurchaseOptionUnitsIssued-label" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">The amount of units issued during the period under the Unit Purchase Option.</link:label>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="aipt_UnitPurchaseOptionUnitsIssued" xlink:to="aipt_UnitPurchaseOptionUnitsIssued-label" xlink:type="arc"/>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_NonmonetaryTransactionTypeDomain" xlink:label="us-gaap_NonmonetaryTransactionTypeDomain" xlink:type="locator"/>
    <link:label xlink:label="us-gaap_NonmonetaryTransactionTypeDomain-label" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Nonmonetary Transaction Type [Domain]</link:label>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_NonmonetaryTransactionTypeDomain" xlink:to="us-gaap_NonmonetaryTransactionTypeDomain-label" xlink:type="arc"/>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_TaxPeriodDomain" xlink:label="us-gaap_TaxPeriodDomain" xlink:type="locator"/>
    <link:label xlink:label="us-gaap_TaxPeriodDomain-label" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Tax Period [Domain]</link:label>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_TaxPeriodDomain" xlink:to="us-gaap_TaxPeriodDomain-label" xlink:type="arc"/>
    <link:loc xlink:href="aipt-20180630.xsd#aipt_TheConvertibleNotesMember" xlink:label="aipt_TheConvertibleNotesMember" xlink:type="locator"/>
    <link:label xlink:label="aipt_TheConvertibleNotesMember-label" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">The Convertible Notes [Member]</link:label>
    <link:label xlink:label="aipt_TheConvertibleNotesMember-label" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">The name of the short-term debt arrangement for convertible promissory notes.</link:label>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="aipt_TheConvertibleNotesMember" xlink:to="aipt_TheConvertibleNotesMember-label" xlink:type="arc"/>
    <link:loc xlink:href="aipt-20180630.xsd#aipt_DebtInstrumentRedemptionPrincipalAmount" xlink:label="aipt_DebtInstrumentRedemptionPrincipalAmount" xlink:type="locator"/>
    <link:label xlink:label="aipt_DebtInstrumentRedemptionPrincipalAmount-label" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">aipt_DebtInstrumentRedemptionPrincipalAmount</link:label>
    <link:label xlink:label="aipt_DebtInstrumentRedemptionPrincipalAmount-label" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Debt Instrument Redemption Principal Amount</link:label>
    <link:label xlink:label="aipt_DebtInstrumentRedemptionPrincipalAmount-label" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">The aggregate principal amount that is being redeemed.</link:label>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="aipt_DebtInstrumentRedemptionPrincipalAmount" xlink:to="aipt_DebtInstrumentRedemptionPrincipalAmount-label" xlink:type="arc"/>
    <link:loc xlink:href="aipt-20180630.xsd#aipt_DebtInstrumentRedemptionAmountPaidToAffiliates" xlink:label="aipt_DebtInstrumentRedemptionAmountPaidToAffiliates" xlink:type="locator"/>
    <link:label xlink:label="aipt_DebtInstrumentRedemptionAmountPaidToAffiliates-label" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">aipt_DebtInstrumentRedemptionAmountPaidToAffiliates</link:label>
    <link:label xlink:label="aipt_DebtInstrumentRedemptionAmountPaidToAffiliates-label" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Debt Instrument Redemption Amount Paid to Affiliates</link:label>
    <link:label xlink:label="aipt_DebtInstrumentRedemptionAmountPaidToAffiliates-label" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">Amount paid to affiliates in redemption of their convertible notes.</link:label>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="aipt_DebtInstrumentRedemptionAmountPaidToAffiliates" xlink:to="aipt_DebtInstrumentRedemptionAmountPaidToAffiliates-label" xlink:type="arc"/>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_NonmonetaryTransactionTypeAxis" xlink:label="us-gaap_NonmonetaryTransactionTypeAxis" xlink:type="locator"/>
    <link:label xlink:label="us-gaap_NonmonetaryTransactionTypeAxis-label" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Nonmonetary Transaction Type [Axis]</link:label>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_NonmonetaryTransactionTypeAxis" xlink:to="us-gaap_NonmonetaryTransactionTypeAxis-label" xlink:type="arc"/>
    <link:loc xlink:href="aipt-20180630.xsd#aipt_DebtInstrumentRedemptionPremiumPercentage" xlink:label="aipt_DebtInstrumentRedemptionPremiumPercentage" xlink:type="locator"/>
    <link:label xlink:label="aipt_DebtInstrumentRedemptionPremiumPercentage-label" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">aipt_DebtInstrumentRedemptionPremiumPercentage</link:label>
    <link:label xlink:label="aipt_DebtInstrumentRedemptionPremiumPercentage-label" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Debt Instrument Redemption Premium Percentage</link:label>
    <link:label xlink:label="aipt_DebtInstrumentRedemptionPremiumPercentage-label" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">The redeemable premium percentage on a debt instrument.</link:label>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="aipt_DebtInstrumentRedemptionPremiumPercentage" xlink:to="aipt_DebtInstrumentRedemptionPremiumPercentage-label" xlink:type="arc"/>
    <link:loc xlink:href="aipt-20180630.xsd#aipt_UnitPurchaseOptionUnitsSold" xlink:label="aipt_UnitPurchaseOptionUnitsSold" xlink:type="locator"/>
    <link:label xlink:label="aipt_UnitPurchaseOptionUnitsSold-label" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">aipt_UnitPurchaseOptionUnitsSold</link:label>
    <link:label xlink:label="aipt_UnitPurchaseOptionUnitsSold-label" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Unit Purchase Option Units Sold</link:label>
    <link:label xlink:label="aipt_UnitPurchaseOptionUnitsSold-label" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">Number of units sold during the period.</link:label>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="aipt_UnitPurchaseOptionUnitsSold" xlink:to="aipt_UnitPurchaseOptionUnitsSold-label" xlink:type="arc"/>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_TaxPeriodAxis" xlink:label="us-gaap_TaxPeriodAxis" xlink:type="locator"/>
    <link:label xlink:label="us-gaap_TaxPeriodAxis-label" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Tax Period [Axis]</link:label>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_TaxPeriodAxis" xlink:to="us-gaap_TaxPeriodAxis-label" xlink:type="arc"/>
    <link:loc xlink:href="aipt-20180630.xsd#aipt_ReverseSharesIssuedForEscrowUnderTerminationOfAgreementValue" xlink:label="aipt_ReverseSharesIssuedForEscrowUnderTerminationOfAgreementValue" xlink:type="locator"/>
    <link:label xlink:label="aipt_ReverseSharesIssuedForEscrowUnderTerminationOfAgreementValue-label" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">aipt_ReverseSharesIssuedForEscrowUnderTerminationOfAgreementValue</link:label>
    <link:label xlink:label="aipt_ReverseSharesIssuedForEscrowUnderTerminationOfAgreementValue-label" xlink:role="http://www.xbrl.org/2009/role/negatedLabel" xlink:type="resource" xml:lang="en-US">Reverse shares issued for escrow with GLG Pharma pursuant to the termination agreement</link:label>
    <link:label xlink:label="aipt_ReverseSharesIssuedForEscrowUnderTerminationOfAgreementValue-label" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">Represents the value of reverse shares issued for escrow under the termination of an agreement.</link:label>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="aipt_ReverseSharesIssuedForEscrowUnderTerminationOfAgreementValue" xlink:to="aipt_ReverseSharesIssuedForEscrowUnderTerminationOfAgreementValue-label" xlink:type="arc"/>
    <link:loc xlink:href="aipt-20180630.xsd#aipt_ReverseSharesIssuedForEscrowPursuantToTerminationOfAgreementShares" xlink:label="aipt_ReverseSharesIssuedForEscrowPursuantToTerminationOfAgreementShares" xlink:type="locator"/>
    <link:label xlink:label="aipt_ReverseSharesIssuedForEscrowPursuantToTerminationOfAgreementShares-label" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">aipt_ReverseSharesIssuedForEscrowPursuantToTerminationOfAgreementShares</link:label>
    <link:label xlink:label="aipt_ReverseSharesIssuedForEscrowPursuantToTerminationOfAgreementShares-label" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Reverse Shares Issued for Escrow Pursuant to Termination of Agreement, Shares</link:label>
    <link:label xlink:label="aipt_ReverseSharesIssuedForEscrowPursuantToTerminationOfAgreementShares-label" xlink:role="http://www.xbrl.org/2009/role/negatedLabel" xlink:type="resource" xml:lang="en-US">Reverse shares issued for escrow with GLG Pharma pursuant to the termination agreement (in shares)</link:label>
    <link:label xlink:label="aipt_ReverseSharesIssuedForEscrowPursuantToTerminationOfAgreementShares-label" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">Represents the number of reverse shares issued for escrow during the period, pursuant to the termination of an agreement.</link:label>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="aipt_ReverseSharesIssuedForEscrowPursuantToTerminationOfAgreementShares" xlink:to="aipt_ReverseSharesIssuedForEscrowPursuantToTerminationOfAgreementShares-label" xlink:type="arc"/>
    <link:loc xlink:href="aipt-20180630.xsd#aipt_CashlessExerciseOfCommonStockWarrantsTotal" xlink:label="aipt_CashlessExerciseOfCommonStockWarrantsTotal" xlink:type="locator"/>
    <link:label xlink:label="aipt_CashlessExerciseOfCommonStockWarrantsTotal-label" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">aipt_CashlessExerciseOfCommonStockWarrantsTotal</link:label>
    <link:label xlink:label="aipt_CashlessExerciseOfCommonStockWarrantsTotal-label" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Cashless Exercise of Common Stock Warrants, Total</link:label>
    <link:label xlink:label="aipt_CashlessExerciseOfCommonStockWarrantsTotal-label" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">Represents the total number of cashless exercise of common stock warrants.</link:label>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="aipt_CashlessExerciseOfCommonStockWarrantsTotal" xlink:to="aipt_CashlessExerciseOfCommonStockWarrantsTotal-label" xlink:type="arc"/>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_WeightedAverageNumberOfShareOutstandingBasicAndDiluted" xlink:label="us-gaap_WeightedAverageNumberOfShareOutstandingBasicAndDiluted" xlink:type="locator"/>
    <link:label xlink:label="us-gaap_WeightedAverageNumberOfShareOutstandingBasicAndDiluted-label" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Weighted average shares used in computation - basic and diluted (in shares)</link:label>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_WeightedAverageNumberOfShareOutstandingBasicAndDiluted" xlink:to="us-gaap_WeightedAverageNumberOfShareOutstandingBasicAndDiluted-label" xlink:type="arc"/>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_ProceedsFromSaleOfAvailableForSaleSecurities" xlink:label="us-gaap_ProceedsFromSaleOfAvailableForSaleSecurities" xlink:type="locator"/>
    <link:label xlink:label="us-gaap_ProceedsFromSaleOfAvailableForSaleSecurities-label" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Proceeds from sale of marketable securities</link:label>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_ProceedsFromSaleOfAvailableForSaleSecurities" xlink:to="us-gaap_ProceedsFromSaleOfAvailableForSaleSecurities-label" xlink:type="arc"/>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_SharePrice" xlink:label="us-gaap_SharePrice" xlink:type="locator"/>
    <link:label xlink:label="us-gaap_SharePrice-label" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">us-gaap_SharePrice</link:label>
    <link:label xlink:label="us-gaap_SharePrice-label" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Share Price</link:label>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_SharePrice" xlink:to="us-gaap_SharePrice-label" xlink:type="arc"/>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareAmount" xlink:label="us-gaap_AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareAmount" xlink:type="locator"/>
    <link:label xlink:label="us-gaap_AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareAmount-label" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">us-gaap_AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareAmount</link:label>
    <link:label xlink:label="us-gaap_AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareAmount-label" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Antidilutive Securities Excluded from Computation of Earnings Per Share, Amount</link:label>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareAmount" xlink:to="us-gaap_AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareAmount-label" xlink:type="arc"/>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_NonUsMember" xlink:label="us-gaap_NonUsMember" xlink:type="locator"/>
    <link:label xlink:label="us-gaap_NonUsMember-label" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Non-US [Member]</link:label>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_NonUsMember" xlink:to="us-gaap_NonUsMember-label" xlink:type="arc"/>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_EarningsPerShareBasicAndDiluted" xlink:label="us-gaap_EarningsPerShareBasicAndDiluted" xlink:type="locator"/>
    <link:label xlink:label="us-gaap_EarningsPerShareBasicAndDiluted-label" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Loss per common share - basic and diluted (in dollars per share)</link:label>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_EarningsPerShareBasicAndDiluted" xlink:to="us-gaap_EarningsPerShareBasicAndDiluted-label" xlink:type="arc"/>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_OperatingLossCarryforwards" xlink:label="us-gaap_OperatingLossCarryforwards" xlink:type="locator"/>
    <link:label xlink:label="us-gaap_OperatingLossCarryforwards-label" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">us-gaap_OperatingLossCarryforwards</link:label>
    <link:label xlink:label="us-gaap_OperatingLossCarryforwards-label" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Operating Loss Carryforwards, Total</link:label>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_OperatingLossCarryforwards" xlink:to="us-gaap_OperatingLossCarryforwards-label" xlink:type="arc"/>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_ScenarioForecastMember" xlink:label="us-gaap_ScenarioForecastMember" xlink:type="locator"/>
    <link:label xlink:label="us-gaap_ScenarioForecastMember-label" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Scenario, Forecast [Member]</link:label>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_ScenarioForecastMember" xlink:to="us-gaap_ScenarioForecastMember-label" xlink:type="arc"/>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_OperatingLossCarryforwardsValuationAllowance" xlink:label="us-gaap_OperatingLossCarryforwardsValuationAllowance" xlink:type="locator"/>
    <link:label xlink:label="us-gaap_OperatingLossCarryforwardsValuationAllowance-label" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">us-gaap_OperatingLossCarryforwardsValuationAllowance</link:label>
    <link:label xlink:label="us-gaap_OperatingLossCarryforwardsValuationAllowance-label" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Operating Loss Carryforwards, Valuation Allowance, Total</link:label>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_OperatingLossCarryforwardsValuationAllowance" xlink:to="us-gaap_OperatingLossCarryforwardsValuationAllowance-label" xlink:type="arc"/>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_StatementTable" xlink:label="us-gaap_StatementTable" xlink:type="locator"/>
    <link:label xlink:label="us-gaap_StatementTable-label" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Statement [Table]</link:label>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_StatementTable" xlink:to="us-gaap_StatementTable-label" xlink:type="arc"/>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_StatementScenarioAxis" xlink:label="us-gaap_StatementScenarioAxis" xlink:type="locator"/>
    <link:label xlink:label="us-gaap_StatementScenarioAxis-label" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Scenario [Axis]</link:label>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_StatementScenarioAxis" xlink:to="us-gaap_StatementScenarioAxis-label" xlink:type="arc"/>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_StatementOfFinancialPositionAbstract" xlink:label="us-gaap_StatementOfFinancialPositionAbstract" xlink:type="locator"/>
    <link:label xlink:label="us-gaap_StatementOfFinancialPositionAbstract-label" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Statement of Financial Position [Abstract]</link:label>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_StatementOfFinancialPositionAbstract" xlink:to="us-gaap_StatementOfFinancialPositionAbstract-label" xlink:type="arc"/>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_ScenarioUnspecifiedDomain" xlink:label="us-gaap_ScenarioUnspecifiedDomain" xlink:type="locator"/>
    <link:label xlink:label="us-gaap_ScenarioUnspecifiedDomain-label" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Scenario, Unspecified [Domain]</link:label>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_ScenarioUnspecifiedDomain" xlink:to="us-gaap_ScenarioUnspecifiedDomain-label" xlink:type="arc"/>
    <link:loc xlink:href="aipt-20180630.xsd#aipt_ClassOfWarrantOrRightNumberOfWarrantsVestedAndExercisable" xlink:label="aipt_ClassOfWarrantOrRightNumberOfWarrantsVestedAndExercisable" xlink:type="locator"/>
    <link:label xlink:label="aipt_ClassOfWarrantOrRightNumberOfWarrantsVestedAndExercisable-label" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">aipt_ClassOfWarrantOrRightNumberOfWarrantsVestedAndExercisable</link:label>
    <link:label xlink:label="aipt_ClassOfWarrantOrRightNumberOfWarrantsVestedAndExercisable-label" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Class of Warrant or Right Number of Warrants Vested and Exercisable</link:label>
    <link:label xlink:label="aipt_ClassOfWarrantOrRightNumberOfWarrantsVestedAndExercisable-label" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">The number of warrants that are fully vested and exercisable at the balance sheet date.</link:label>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="aipt_ClassOfWarrantOrRightNumberOfWarrantsVestedAndExercisable" xlink:to="aipt_ClassOfWarrantOrRightNumberOfWarrantsVestedAndExercisable-label" xlink:type="arc"/>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_WeightedAverageNumberOfSharesOutstandingBasic" xlink:label="us-gaap_WeightedAverageNumberOfSharesOutstandingBasic" xlink:type="locator"/>
    <link:label xlink:label="us-gaap_WeightedAverageNumberOfSharesOutstandingBasic-label" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Weighted average common shares outstanding-basic (in shares)</link:label>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_WeightedAverageNumberOfSharesOutstandingBasic" xlink:to="us-gaap_WeightedAverageNumberOfSharesOutstandingBasic-label" xlink:type="arc"/>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_BusinessAcquisitionAxis" xlink:label="us-gaap_BusinessAcquisitionAxis" xlink:type="locator"/>
    <link:label xlink:label="us-gaap_BusinessAcquisitionAxis-label" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Business Acquisition [Axis]</link:label>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_BusinessAcquisitionAxis" xlink:to="us-gaap_BusinessAcquisitionAxis-label" xlink:type="arc"/>
    <link:loc xlink:href="aipt-20180630.xsd#aipt_StockIncentivePlan2012Member" xlink:label="aipt_StockIncentivePlan2012Member" xlink:type="locator"/>
    <link:label xlink:label="aipt_StockIncentivePlan2012Member-label" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Stock Incentive Plan 2012 [Member]</link:label>
    <link:label xlink:label="aipt_StockIncentivePlan2012Member-label" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">Represents Stock Incentive Plan 2012.</link:label>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="aipt_StockIncentivePlan2012Member" xlink:to="aipt_StockIncentivePlan2012Member-label" xlink:type="arc"/>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_OperatingLeasesFutureMinimumPaymentsDueInFourYears" xlink:label="us-gaap_OperatingLeasesFutureMinimumPaymentsDueInFourYears" xlink:type="locator"/>
    <link:label xlink:label="us-gaap_OperatingLeasesFutureMinimumPaymentsDueInFourYears-label" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">us-gaap_OperatingLeasesFutureMinimumPaymentsDueInFourYears</link:label>
    <link:label xlink:label="us-gaap_OperatingLeasesFutureMinimumPaymentsDueInFourYears-label" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">2021</link:label>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_OperatingLeasesFutureMinimumPaymentsDueInFourYears" xlink:to="us-gaap_OperatingLeasesFutureMinimumPaymentsDueInFourYears-label" xlink:type="arc"/>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_AvailableForSaleSecurities" xlink:label="us-gaap_AvailableForSaleSecurities" xlink:type="locator"/>
    <link:label xlink:label="us-gaap_AvailableForSaleSecurities-label" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:type="resource" xml:lang="en-US">Fair Value</link:label>
    <link:label xlink:label="us-gaap_AvailableForSaleSecurities-label" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Marketable securities</link:label>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_AvailableForSaleSecurities" xlink:to="us-gaap_AvailableForSaleSecurities-label" xlink:type="arc"/>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_BusinessAcquisitionAcquireeDomain" xlink:label="us-gaap_BusinessAcquisitionAcquireeDomain" xlink:type="locator"/>
    <link:label xlink:label="us-gaap_BusinessAcquisitionAcquireeDomain-label" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Business Acquisition, Acquiree [Domain]</link:label>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_BusinessAcquisitionAcquireeDomain" xlink:to="us-gaap_BusinessAcquisitionAcquireeDomain-label" xlink:type="arc"/>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_OperatingLeasesFutureMinimumPaymentsDueInTwoYears" xlink:label="us-gaap_OperatingLeasesFutureMinimumPaymentsDueInTwoYears" xlink:type="locator"/>
    <link:label xlink:label="us-gaap_OperatingLeasesFutureMinimumPaymentsDueInTwoYears-label" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">us-gaap_OperatingLeasesFutureMinimumPaymentsDueInTwoYears</link:label>
    <link:label xlink:label="us-gaap_OperatingLeasesFutureMinimumPaymentsDueInTwoYears-label" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">2019</link:label>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_OperatingLeasesFutureMinimumPaymentsDueInTwoYears" xlink:to="us-gaap_OperatingLeasesFutureMinimumPaymentsDueInTwoYears-label" xlink:type="arc"/>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_StatementOfCashFlowsAbstract" xlink:label="us-gaap_StatementOfCashFlowsAbstract" xlink:type="locator"/>
    <link:label xlink:label="us-gaap_StatementOfCashFlowsAbstract-label" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Statement of Cash Flows [Abstract]</link:label>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_StatementOfCashFlowsAbstract" xlink:to="us-gaap_StatementOfCashFlowsAbstract-label" xlink:type="arc"/>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_OperatingLeasesFutureMinimumPaymentsDueInThreeYears" xlink:label="us-gaap_OperatingLeasesFutureMinimumPaymentsDueInThreeYears" xlink:type="locator"/>
    <link:label xlink:label="us-gaap_OperatingLeasesFutureMinimumPaymentsDueInThreeYears-label" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">us-gaap_OperatingLeasesFutureMinimumPaymentsDueInThreeYears</link:label>
    <link:label xlink:label="us-gaap_OperatingLeasesFutureMinimumPaymentsDueInThreeYears-label" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">2020</link:label>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_OperatingLeasesFutureMinimumPaymentsDueInThreeYears" xlink:to="us-gaap_OperatingLeasesFutureMinimumPaymentsDueInThreeYears-label" xlink:type="arc"/>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_StatementOfStockholdersEquityAbstract" xlink:label="us-gaap_StatementOfStockholdersEquityAbstract" xlink:type="locator"/>
    <link:label xlink:label="us-gaap_StatementOfStockholdersEquityAbstract-label" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Statement of Stockholders' Equity [Abstract]</link:label>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_StatementOfStockholdersEquityAbstract" xlink:to="us-gaap_StatementOfStockholdersEquityAbstract-label" xlink:type="arc"/>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_OperatingLeasesFutureMinimumPaymentsDueCurrent" xlink:label="us-gaap_OperatingLeasesFutureMinimumPaymentsDueCurrent" xlink:type="locator"/>
    <link:label xlink:label="us-gaap_OperatingLeasesFutureMinimumPaymentsDueCurrent-label" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">us-gaap_OperatingLeasesFutureMinimumPaymentsDueCurrent</link:label>
    <link:label xlink:label="us-gaap_OperatingLeasesFutureMinimumPaymentsDueCurrent-label" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">2018</link:label>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_OperatingLeasesFutureMinimumPaymentsDueCurrent" xlink:to="us-gaap_OperatingLeasesFutureMinimumPaymentsDueCurrent-label" xlink:type="arc"/>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_IncomeStatementAbstract" xlink:label="us-gaap_IncomeStatementAbstract" xlink:type="locator"/>
    <link:label xlink:label="us-gaap_IncomeStatementAbstract-label" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Income Statement [Abstract]</link:label>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_IncomeStatementAbstract" xlink:to="us-gaap_IncomeStatementAbstract-label" xlink:type="arc"/>
    <link:loc xlink:href="aipt-20180630.xsd#aipt_StandardProductWarrantyTerm" xlink:label="aipt_StandardProductWarrantyTerm" xlink:type="locator"/>
    <link:label xlink:label="aipt_StandardProductWarrantyTerm-label" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">aipt_StandardProductWarrantyTerm</link:label>
    <link:label xlink:label="aipt_StandardProductWarrantyTerm-label" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Standard Product Warranty, Term</link:label>
    <link:label xlink:label="aipt_StandardProductWarrantyTerm-label" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">Represents the term of the standard product warranty.</link:label>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="aipt_StandardProductWarrantyTerm" xlink:to="aipt_StandardProductWarrantyTerm-label" xlink:type="arc"/>
    <link:loc xlink:href="aipt-20180630.xsd#aipt_MaintenancePlanServiceRequirementPeriodSubsequentToOneYearAnniversaryOfInvoice" xlink:label="aipt_MaintenancePlanServiceRequirementPeriodSubsequentToOneYearAnniversaryOfInvoice" xlink:type="locator"/>
    <link:label xlink:label="aipt_MaintenancePlanServiceRequirementPeriodSubsequentToOneYearAnniversaryOfInvoice-label" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">aipt_MaintenancePlanServiceRequirementPeriodSubsequentToOneYearAnniversaryOfInvoice</link:label>
    <link:label xlink:label="aipt_MaintenancePlanServiceRequirementPeriodSubsequentToOneYearAnniversaryOfInvoice-label" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Maintenance Plan, Service Requirement, Period Subsequent to One Year Anniversary of Invoice</link:label>
    <link:label xlink:label="aipt_MaintenancePlanServiceRequirementPeriodSubsequentToOneYearAnniversaryOfInvoice-label" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">Represents the service requirement under the company's maintenance plan, expressed as a period of time subsequent to the one-year anniversary of the invoice.</link:label>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="aipt_MaintenancePlanServiceRequirementPeriodSubsequentToOneYearAnniversaryOfInvoice" xlink:to="aipt_MaintenancePlanServiceRequirementPeriodSubsequentToOneYearAnniversaryOfInvoice-label" xlink:type="arc"/>
    <link:loc xlink:href="aipt-20180630.xsd#aipt_StandardPaymentTermForCustomers" xlink:label="aipt_StandardPaymentTermForCustomers" xlink:type="locator"/>
    <link:label xlink:label="aipt_StandardPaymentTermForCustomers-label" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">aipt_StandardPaymentTermForCustomers</link:label>
    <link:label xlink:label="aipt_StandardPaymentTermForCustomers-label" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Standard Payment Term for Customers</link:label>
    <link:label xlink:label="aipt_StandardPaymentTermForCustomers-label" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">Represents the standard payment term for customers, in general.</link:label>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="aipt_StandardPaymentTermForCustomers" xlink:to="aipt_StandardPaymentTermForCustomers-label" xlink:type="arc"/>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_AvailableForSaleSecuritiesAmortizedCost" xlink:label="us-gaap_AvailableForSaleSecuritiesAmortizedCost" xlink:type="locator"/>
    <link:label xlink:label="us-gaap_AvailableForSaleSecuritiesAmortizedCost-label" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Cost</link:label>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_AvailableForSaleSecuritiesAmortizedCost" xlink:to="us-gaap_AvailableForSaleSecuritiesAmortizedCost-label" xlink:type="arc"/>
    <link:loc xlink:href="aipt-20180630.xsd#aipt_BusinessAcquisitionEquityInterestIssuedOrIssuableFromExchangeOfWarrants" xlink:label="aipt_BusinessAcquisitionEquityInterestIssuedOrIssuableFromExchangeOfWarrants" xlink:type="locator"/>
    <link:label xlink:label="aipt_BusinessAcquisitionEquityInterestIssuedOrIssuableFromExchangeOfWarrants-label" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">aipt_BusinessAcquisitionEquityInterestIssuedOrIssuableFromExchangeOfWarrants</link:label>
    <link:label xlink:label="aipt_BusinessAcquisitionEquityInterestIssuedOrIssuableFromExchangeOfWarrants-label" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Business Acquisition, Equity Interest Issued or Issuable from Exchange of Warrants</link:label>
    <link:label xlink:label="aipt_BusinessAcquisitionEquityInterestIssuedOrIssuableFromExchangeOfWarrants-label" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">Number of shares of equity interests issued or issuable from exchange of acquiree's warrants.</link:label>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="aipt_BusinessAcquisitionEquityInterestIssuedOrIssuableFromExchangeOfWarrants" xlink:to="aipt_BusinessAcquisitionEquityInterestIssuedOrIssuableFromExchangeOfWarrants-label" xlink:type="arc"/>
    <link:loc xlink:href="aipt-20180630.xsd#aipt_PercentageOfHoldersOfAcquireesPromissoryNoteAgreeingToMerger" xlink:label="aipt_PercentageOfHoldersOfAcquireesPromissoryNoteAgreeingToMerger" xlink:type="locator"/>
    <link:label xlink:label="aipt_PercentageOfHoldersOfAcquireesPromissoryNoteAgreeingToMerger-label" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">aipt_PercentageOfHoldersOfAcquireesPromissoryNoteAgreeingToMerger</link:label>
    <link:label xlink:label="aipt_PercentageOfHoldersOfAcquireesPromissoryNoteAgreeingToMerger-label" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Percentage of Holders of Acquiree's Promissory Note Agreeing to Merger</link:label>
    <link:label xlink:label="aipt_PercentageOfHoldersOfAcquireesPromissoryNoteAgreeingToMerger-label" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">Represents the minimum percentage of holders of acquiree's promissory note agreeing to the merger.</link:label>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="aipt_PercentageOfHoldersOfAcquireesPromissoryNoteAgreeingToMerger" xlink:to="aipt_PercentageOfHoldersOfAcquireesPromissoryNoteAgreeingToMerger-label" xlink:type="arc"/>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_AvailableForSaleSecuritiesGrossRealizedGainLossNet" xlink:label="us-gaap_AvailableForSaleSecuritiesGrossRealizedGainLossNet" xlink:type="locator"/>
    <link:label xlink:label="us-gaap_AvailableForSaleSecuritiesGrossRealizedGainLossNet-label" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">us-gaap_AvailableForSaleSecuritiesGrossRealizedGainLossNet</link:label>
    <link:label xlink:label="us-gaap_AvailableForSaleSecuritiesGrossRealizedGainLossNet-label" xlink:role="http://www.xbrl.org/2009/role/negatedLabel" xlink:type="resource" xml:lang="en-US">Gain (loss) from sale of marketable securities</link:label>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_AvailableForSaleSecuritiesGrossRealizedGainLossNet" xlink:to="us-gaap_AvailableForSaleSecuritiesGrossRealizedGainLossNet-label" xlink:type="arc"/>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_BusinessAcquisitionEquityInterestsIssuedOrIssuableNumberOfSharesIssued" xlink:label="us-gaap_BusinessAcquisitionEquityInterestsIssuedOrIssuableNumberOfSharesIssued" xlink:type="locator"/>
    <link:label xlink:label="us-gaap_BusinessAcquisitionEquityInterestsIssuedOrIssuableNumberOfSharesIssued-label" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">us-gaap_BusinessAcquisitionEquityInterestsIssuedOrIssuableNumberOfSharesIssued</link:label>
    <link:label xlink:label="us-gaap_BusinessAcquisitionEquityInterestsIssuedOrIssuableNumberOfSharesIssued-label" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Business Acquisition, Equity Interest Issued or Issuable, Number of Shares</link:label>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_BusinessAcquisitionEquityInterestsIssuedOrIssuableNumberOfSharesIssued" xlink:to="us-gaap_BusinessAcquisitionEquityInterestsIssuedOrIssuableNumberOfSharesIssued-label" xlink:type="arc"/>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_ScheduleOfRentExpenseTableTextBlock" xlink:label="us-gaap_ScheduleOfRentExpenseTableTextBlock" xlink:type="locator"/>
    <link:label xlink:label="us-gaap_ScheduleOfRentExpenseTableTextBlock-label" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Schedule of Rent Expense [Table Text Block]</link:label>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_ScheduleOfRentExpenseTableTextBlock" xlink:to="us-gaap_ScheduleOfRentExpenseTableTextBlock-label" xlink:type="arc"/>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_ScheduleOfDeferredTaxAssetsAndLiabilitiesTableTextBlock" xlink:label="us-gaap_ScheduleOfDeferredTaxAssetsAndLiabilitiesTableTextBlock" xlink:type="locator"/>
    <link:label xlink:label="us-gaap_ScheduleOfDeferredTaxAssetsAndLiabilitiesTableTextBlock-label" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Schedule of Deferred Tax Assets and Liabilities [Table Text Block]</link:label>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_ScheduleOfDeferredTaxAssetsAndLiabilitiesTableTextBlock" xlink:to="us-gaap_ScheduleOfDeferredTaxAssetsAndLiabilitiesTableTextBlock-label" xlink:type="arc"/>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_ScheduleOfAvailableForSaleSecuritiesReconciliationTableTextBlock" xlink:label="us-gaap_ScheduleOfAvailableForSaleSecuritiesReconciliationTableTextBlock" xlink:type="locator"/>
    <link:label xlink:label="us-gaap_ScheduleOfAvailableForSaleSecuritiesReconciliationTableTextBlock-label" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Schedule of Available-for-sale Securities Reconciliation [Table Text Block]</link:label>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_ScheduleOfAvailableForSaleSecuritiesReconciliationTableTextBlock" xlink:to="us-gaap_ScheduleOfAvailableForSaleSecuritiesReconciliationTableTextBlock-label" xlink:type="arc"/>
    <link:loc xlink:href="aipt-20180630.xsd#aipt_StockToBeIssuedForExchangeOfferSharesMaximum" xlink:label="aipt_StockToBeIssuedForExchangeOfferSharesMaximum" xlink:type="locator"/>
    <link:label xlink:label="aipt_StockToBeIssuedForExchangeOfferSharesMaximum-label" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">aipt_StockToBeIssuedForExchangeOfferSharesMaximum</link:label>
    <link:label xlink:label="aipt_StockToBeIssuedForExchangeOfferSharesMaximum-label" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Stock to be Issued for Exchange Offer, Shares, Maximum</link:label>
    <link:label xlink:label="aipt_StockToBeIssuedForExchangeOfferSharesMaximum-label" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">Represents the maximum number of shares to be issued per terms of the Exchange Offer.</link:label>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="aipt_StockToBeIssuedForExchangeOfferSharesMaximum" xlink:to="aipt_StockToBeIssuedForExchangeOfferSharesMaximum-label" xlink:type="arc"/>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_AvailableForSaleSecuritiesAccumulatedGrossUnrealizedGainBeforeTax" xlink:label="us-gaap_AvailableForSaleSecuritiesAccumulatedGrossUnrealizedGainBeforeTax" xlink:type="locator"/>
    <link:label xlink:label="us-gaap_AvailableForSaleSecuritiesAccumulatedGrossUnrealizedGainBeforeTax-label" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Gross Unrealized Gains</link:label>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_AvailableForSaleSecuritiesAccumulatedGrossUnrealizedGainBeforeTax" xlink:to="us-gaap_AvailableForSaleSecuritiesAccumulatedGrossUnrealizedGainBeforeTax-label" xlink:type="arc"/>
    <link:loc xlink:href="aipt-20180630.xsd#aipt_ExchangeOfferMember" xlink:label="aipt_ExchangeOfferMember" xlink:type="locator"/>
    <link:label xlink:label="aipt_ExchangeOfferMember-label" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Exchange Offer [Member]</link:label>
    <link:label xlink:label="aipt_ExchangeOfferMember-label" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">Represents the Exchange Offer.</link:label>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="aipt_ExchangeOfferMember" xlink:to="aipt_ExchangeOfferMember-label" xlink:type="arc"/>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_AvailableForSaleSecuritiesAccumulatedGrossUnrealizedLossBeforeTax" xlink:label="us-gaap_AvailableForSaleSecuritiesAccumulatedGrossUnrealizedLossBeforeTax" xlink:type="locator"/>
    <link:label xlink:label="us-gaap_AvailableForSaleSecuritiesAccumulatedGrossUnrealizedLossBeforeTax-label" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Gross Unrealized Losses</link:label>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_AvailableForSaleSecuritiesAccumulatedGrossUnrealizedLossBeforeTax" xlink:to="us-gaap_AvailableForSaleSecuritiesAccumulatedGrossUnrealizedLossBeforeTax-label" xlink:type="arc"/>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_NetCashProvidedByUsedInFinancingActivitiesAbstract" xlink:label="us-gaap_NetCashProvidedByUsedInFinancingActivitiesAbstract" xlink:type="locator"/>
    <link:label xlink:label="us-gaap_NetCashProvidedByUsedInFinancingActivitiesAbstract-label" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Cash flow from financing activities:</link:label>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_NetCashProvidedByUsedInFinancingActivitiesAbstract" xlink:to="us-gaap_NetCashProvidedByUsedInFinancingActivitiesAbstract-label" xlink:type="arc"/>
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    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_ConvertiblePreferredStockMember" xlink:label="us-gaap_ConvertiblePreferredStockMember" xlink:type="locator"/>
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    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_AccountsPayableAndAccruedLiabilitiesNoncurrent" xlink:label="us-gaap_AccountsPayableAndAccruedLiabilitiesNoncurrent" xlink:type="locator"/>
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    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_StockholdersEquity" xlink:label="us-gaap_StockholdersEquity" xlink:type="locator"/>
    <link:label xlink:label="us-gaap_StockholdersEquity-label" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Total Stockholders' Equity</link:label>
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    <link:loc xlink:href="aipt-20180630.xsd#aipt_ReverseStockSplitMember" xlink:label="aipt_ReverseStockSplitMember" xlink:type="locator"/>
    <link:label xlink:label="aipt_ReverseStockSplitMember-label" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Reverse Stock Split [Member]</link:label>
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    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_ScheduleOfEarningsPerShareBasicAndDilutedTableTextBlock" xlink:label="us-gaap_ScheduleOfEarningsPerShareBasicAndDilutedTableTextBlock" xlink:type="locator"/>
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    <link:loc xlink:href="aipt-20180630.xsd#aipt_ValuationAllowancePercentage" xlink:label="aipt_ValuationAllowancePercentage" xlink:type="locator"/>
    <link:label xlink:label="aipt_ValuationAllowancePercentage-label" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">aipt_ValuationAllowancePercentage</link:label>
    <link:label xlink:label="aipt_ValuationAllowancePercentage-label" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Valuation Allowance Percentage</link:label>
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    <link:label xlink:label="us-gaap_PaymentsForProceedsFromInvestments-label" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">us-gaap_PaymentsForProceedsFromInvestments</link:label>
    <link:label xlink:label="us-gaap_PaymentsForProceedsFromInvestments-label" xlink:role="http://www.xbrl.org/2009/role/negatedLabel" xlink:type="resource" xml:lang="en-US">Purchase of marketable securities</link:label>
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    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_ShareBasedCompensationSharesAuthorizedUnderStockOptionPlansByExercisePriceRangeAxis" xlink:label="us-gaap_ShareBasedCompensationSharesAuthorizedUnderStockOptionPlansByExercisePriceRangeAxis" xlink:type="locator"/>
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    <link:loc xlink:href="aipt-20180630.xsd#aipt_EquityIncentivePlanMember" xlink:label="aipt_EquityIncentivePlanMember" xlink:type="locator"/>
    <link:label xlink:label="aipt_EquityIncentivePlanMember-label" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Equity Incentive Plan [Member]</link:label>
    <link:label xlink:label="aipt_EquityIncentivePlanMember-label" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">Information pertaining to the equity incentive plan.</link:label>
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