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    <loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2014/elts/us-gaap-2014-01-31.xsd#us-gaap_StatementEquityComponentsAxis" xlink:label="loc_us-gaap_StatementEquityComponentsAxis" />

    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_us-gaap_StatementEquityComponentsAxis" xml:lang="en-US">Equity Components [Axis]</label>

    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_StatementEquityComponentsAxis" xlink:to="lab_us-gaap_StatementEquityComponentsAxis" />

    <loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2014/elts/us-gaap-2014-01-31.xsd#us-gaap_EquityComponentDomain" xlink:label="loc_us-gaap_EquityComponentDomain" />

    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_us-gaap_EquityComponentDomain" xml:lang="en-US">Equity Component [Domain]</label>

    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_EquityComponentDomain" xlink:to="lab_us-gaap_EquityComponentDomain" />

    <loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2014/elts/us-gaap-2014-01-31.xsd#us-gaap_WarrantMember" xlink:label="loc_us-gaap_WarrantMember" />

    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_us-gaap_WarrantMember" xml:lang="en-US">Warrant [Member]</label>

    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_WarrantMember" xlink:to="lab_us-gaap_WarrantMember" />

    <loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2014/elts/us-gaap-2014-01-31.xsd#us-gaap_SubsequentEventTypeAxis" xlink:label="loc_us-gaap_SubsequentEventTypeAxis" />

    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_us-gaap_SubsequentEventTypeAxis" xml:lang="en-US">Subsequent Event Type [Axis]</label>

    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_SubsequentEventTypeAxis" xlink:to="lab_us-gaap_SubsequentEventTypeAxis" />

    <loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2014/elts/us-gaap-2014-01-31.xsd#us-gaap_SubsequentEventTypeDomain" xlink:label="loc_us-gaap_SubsequentEventTypeDomain" />

    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_us-gaap_SubsequentEventTypeDomain" xml:lang="en-US">Subsequent Event Type [Domain]</label>

    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_SubsequentEventTypeDomain" xlink:to="lab_us-gaap_SubsequentEventTypeDomain" />

    <loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2014/elts/us-gaap-2014-01-31.xsd#us-gaap_SubsequentEventMember" xlink:label="loc_us-gaap_SubsequentEventMember" />

    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_us-gaap_SubsequentEventMember" xml:lang="en-US">Subsequent Event [Member]</label>

    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_SubsequentEventMember" xlink:to="lab_us-gaap_SubsequentEventMember" />

    <loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2014/elts/us-gaap-2014-01-31.xsd#us-gaap_IncomeStatementLocationAxis" xlink:label="loc_us-gaap_IncomeStatementLocationAxis" />

    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_us-gaap_IncomeStatementLocationAxis" xml:lang="en-US">Income Statement Location [Axis]</label>

    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_IncomeStatementLocationAxis" xlink:to="lab_us-gaap_IncomeStatementLocationAxis" />

    <loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2014/elts/us-gaap-2014-01-31.xsd#us-gaap_IncomeStatementLocationDomain" xlink:label="loc_us-gaap_IncomeStatementLocationDomain" />

    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_us-gaap_IncomeStatementLocationDomain" xml:lang="en-US">Income Statement Location [Domain]</label>

    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_IncomeStatementLocationDomain" xlink:to="lab_us-gaap_IncomeStatementLocationDomain" />

    <loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2014/elts/us-gaap-2014-01-31.xsd#us-gaap_ResearchAndDevelopmentExpenseMember" xlink:label="loc_us-gaap_ResearchAndDevelopmentExpenseMember" />

    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_us-gaap_ResearchAndDevelopmentExpenseMember" xml:lang="en-US">Research and Development Expense [Member]</label>

    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="lab_us-gaap_ResearchAndDevelopmentExpenseMember" xml:lang="en-US">Research and development expenses [Member]</label>

    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_ResearchAndDevelopmentExpenseMember" xlink:to="lab_us-gaap_ResearchAndDevelopmentExpenseMember" />

    <loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2014/elts/us-gaap-2014-01-31.xsd#us-gaap_GeneralAndAdministrativeExpenseMember" xlink:label="loc_us-gaap_GeneralAndAdministrativeExpenseMember" />

    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_us-gaap_GeneralAndAdministrativeExpenseMember" xml:lang="en-US">General and Administrative Expense [Member]</label>

    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="lab_us-gaap_GeneralAndAdministrativeExpenseMember" xml:lang="en-US">General and administrative expenses [Member]</label>

    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_GeneralAndAdministrativeExpenseMember" xlink:to="lab_us-gaap_GeneralAndAdministrativeExpenseMember" />

    <loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2014/elts/us-gaap-2014-01-31.xsd#us-gaap_RelatedPartyTransactionsByRelatedPartyAxis" xlink:label="loc_us-gaap_RelatedPartyTransactionsByRelatedPartyAxis" />

    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_us-gaap_RelatedPartyTransactionsByRelatedPartyAxis" xml:lang="en-US">Related Party [Axis]</label>

    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_RelatedPartyTransactionsByRelatedPartyAxis" xlink:to="lab_us-gaap_RelatedPartyTransactionsByRelatedPartyAxis" />

    <loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2014/elts/us-gaap-2014-01-31.xsd#us-gaap_RelatedPartyDomain" xlink:label="loc_us-gaap_RelatedPartyDomain" />

    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_us-gaap_RelatedPartyDomain" xml:lang="en-US">Related Party [Domain]</label>

    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_RelatedPartyDomain" xlink:to="lab_us-gaap_RelatedPartyDomain" />

    <loc xlink:type="locator" xlink:href="mdgn-20140930.xsd#mdgn_ExecutivesJoinedCompanyMember" xlink:label="loc_mdgn_ExecutivesJoinedCompanyMember" />

    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_mdgn_ExecutivesJoinedCompanyMember" xml:lang="en-US">Executives Joined Company [Member]</label>

    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_mdgn_ExecutivesJoinedCompanyMember" xlink:to="lab_mdgn_ExecutivesJoinedCompanyMember" />

    <loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2014/elts/us-gaap-2014-01-31.xsd#us-gaap_StatementLineItems" xlink:label="loc_us-gaap_StatementLineItems" />

    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_us-gaap_StatementLineItems" xml:lang="en-US">Statement [Line Items]</label>

    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_StatementLineItems" xlink:to="lab_us-gaap_StatementLineItems" />

    <loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2014/elts/us-gaap-2014-01-31.xsd#us-gaap_DevelopmentStageEnterpriseDeficitAccumulatedDuringDevelopmentStage" xlink:label="loc_us-gaap_DevelopmentStageEnterpriseDeficitAccumulatedDuringDevelopmentStage" />

    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_us-gaap_DevelopmentStageEnterpriseDeficitAccumulatedDuringDevelopmentStage" xml:lang="en-US">Development Stage Enterprise, Deficit Accumulated During Development Stage</label>

    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="lab_us-gaap_DevelopmentStageEnterpriseDeficitAccumulatedDuringDevelopmentStage" xml:lang="en-US">Deficit accumulated during the development stage</label>

    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_DevelopmentStageEnterpriseDeficitAccumulatedDuringDevelopmentStage" xlink:to="lab_us-gaap_DevelopmentStageEnterpriseDeficitAccumulatedDuringDevelopmentStage" />

    <loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2014/elts/us-gaap-2014-01-31.xsd#us-gaap_NetIncomeLoss" xlink:label="loc_us-gaap_NetIncomeLoss" />

    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_us-gaap_NetIncomeLoss" xml:lang="en-US">Net Income (Loss) Attributable To Parent</label>

    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="lab_us-gaap_NetIncomeLoss" xml:lang="en-US">Net Income (Loss)</label>

    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/totalLabel" xlink:label="lab_us-gaap_NetIncomeLoss" xml:lang="en-US">Loss</label>

    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="lab_us-gaap_NetIncomeLoss" xml:lang="en-US">Loss</label>

    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_NetIncomeLoss" xlink:to="lab_us-gaap_NetIncomeLoss" />

    <loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2014/elts/us-gaap-2014-01-31.xsd#us-gaap_NetCashProvidedByUsedInOperatingActivities" xlink:label="loc_us-gaap_NetCashProvidedByUsedInOperatingActivities" />

    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_us-gaap_NetCashProvidedByUsedInOperatingActivities" xml:lang="en-US">Net Cash Provided by (Used in) Operating Activities, Total</label>

    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_NetCashProvidedByUsedInOperatingActivities" xlink:to="lab_us-gaap_NetCashProvidedByUsedInOperatingActivities" />

    <loc xlink:type="locator" xlink:href="mdgn-20140930.xsd#mdgn_GrantApproved" xlink:label="loc_mdgn_GrantApproved" />

    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_mdgn_GrantApproved" xml:lang="en-US">Grant Approved</label>

    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="lab_mdgn_GrantApproved" xml:lang="en-US">Amount of grant approved under the terms of governmental, corporate, or foundation grants.</label>

    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_mdgn_GrantApproved" xlink:to="lab_mdgn_GrantApproved" />

    <loc xlink:type="locator" xlink:href="mdgn-20140930.xsd#mdgn_GrantBasedOnExpensesResearchAndDevelopmentExpenses" xlink:label="loc_mdgn_GrantBasedOnExpensesResearchAndDevelopmentExpenses" />

    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_mdgn_GrantBasedOnExpensesResearchAndDevelopmentExpenses" xml:lang="en-US">Grant Based On Expenses Research And Development Expenses</label>

    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="lab_mdgn_GrantBasedOnExpensesResearchAndDevelopmentExpenses" xml:lang="en-US">Total expenses upon which the approved grant is based.</label>

    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_mdgn_GrantBasedOnExpensesResearchAndDevelopmentExpenses" xlink:to="lab_mdgn_GrantBasedOnExpensesResearchAndDevelopmentExpenses" />

    <loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2014/elts/us-gaap-2014-01-31.xsd#us-gaap_GrantsReceivable" xlink:label="loc_us-gaap_GrantsReceivable" />

    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_us-gaap_GrantsReceivable" xml:lang="en-US">Grants Receivable</label>

    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_GrantsReceivable" xlink:to="lab_us-gaap_GrantsReceivable" />

    <loc xlink:type="locator" xlink:href="mdgn-20140930.xsd#mdgn_GrantsReceivedFromOfficeOfChiefScientist" xlink:label="loc_mdgn_GrantsReceivedFromOfficeOfChiefScientist" />

    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_mdgn_GrantsReceivedFromOfficeOfChiefScientist" xml:lang="en-US">Grants Received From Office Of Chief Scientist</label>

    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="lab_mdgn_GrantsReceivedFromOfficeOfChiefScientist" xml:lang="en-US">Amount of grant received From Office of the Chief Scientist.</label>

    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_mdgn_GrantsReceivedFromOfficeOfChiefScientist" xlink:to="lab_mdgn_GrantsReceivedFromOfficeOfChiefScientist" />

    <loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2014/elts/us-gaap-2014-01-31.xsd#us-gaap_StatementClassOfStockAxis" xlink:label="loc_us-gaap_StatementClassOfStockAxis" />

    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_us-gaap_StatementClassOfStockAxis" xml:lang="en-US">Class of Stock [Axis]</label>

    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_StatementClassOfStockAxis" xlink:to="lab_us-gaap_StatementClassOfStockAxis" />

    <loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2014/elts/us-gaap-2014-01-31.xsd#us-gaap_ClassOfStockDomain" xlink:label="loc_us-gaap_ClassOfStockDomain" />

    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_us-gaap_ClassOfStockDomain" xml:lang="en-US">Class of Stock [Domain]</label>

    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_ClassOfStockDomain" xlink:to="lab_us-gaap_ClassOfStockDomain" />

    <loc xlink:type="locator" xlink:href="mdgn-20140930.xsd#mdgn_YearAxis" xlink:label="loc_mdgn_YearAxis" />

    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_mdgn_YearAxis" xml:lang="en-US">year [Axis]</label>

    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_mdgn_YearAxis" xlink:to="lab_mdgn_YearAxis" />

    <loc xlink:type="locator" xlink:href="mdgn-20140930.xsd#mdgn_YearDomain" xlink:label="loc_mdgn_YearDomain" />

    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_mdgn_YearDomain" xml:lang="en-US">Year [Domain]</label>

    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_mdgn_YearDomain" xlink:to="lab_mdgn_YearDomain" />

    <loc xlink:type="locator" xlink:href="mdgn-20140930.xsd#mdgn_May2015AndMay2016Member" xlink:label="loc_mdgn_May2015AndMay2016Member" />

    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_mdgn_May2015AndMay2016Member" xml:lang="en-US">May 2015 And May 2016 [Member]</label>

    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_mdgn_May2015AndMay2016Member" xlink:to="lab_mdgn_May2015AndMay2016Member" />

    <loc xlink:type="locator" xlink:href="mdgn-20140930.xsd#mdgn_May2017AndMay2018Member" xlink:label="loc_mdgn_May2017AndMay2018Member" />

    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_mdgn_May2017AndMay2018Member" xml:lang="en-US">May 2017 And May 2018 [Member]</label>

    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_mdgn_May2017AndMay2018Member" xlink:to="lab_mdgn_May2017AndMay2018Member" />

    <loc xlink:type="locator" xlink:href="mdgn-20140930.xsd#mdgn_May2019AndEachYearThereafterMember" xlink:label="loc_mdgn_May2019AndEachYearThereafterMember" />

    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_mdgn_May2019AndEachYearThereafterMember" xml:lang="en-US">May 2019 and Each Year Thereafter [Member]</label>

    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_mdgn_May2019AndEachYearThereafterMember" xlink:to="lab_mdgn_May2019AndEachYearThereafterMember" />

    <loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2014/elts/us-gaap-2014-01-31.xsd#us-gaap_FiniteLivedIntangibleAssetsByMajorClassAxis" xlink:label="loc_us-gaap_FiniteLivedIntangibleAssetsByMajorClassAxis" />

    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_us-gaap_FiniteLivedIntangibleAssetsByMajorClassAxis" xml:lang="en-US">Finite-Lived Intangible Assets by Major Class [Axis]</label>

    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_FiniteLivedIntangibleAssetsByMajorClassAxis" xlink:to="lab_us-gaap_FiniteLivedIntangibleAssetsByMajorClassAxis" />

    <loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2014/elts/us-gaap-2014-01-31.xsd#us-gaap_FiniteLivedIntangibleAssetsMajorClassNameDomain" xlink:label="loc_us-gaap_FiniteLivedIntangibleAssetsMajorClassNameDomain" />

    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_us-gaap_FiniteLivedIntangibleAssetsMajorClassNameDomain" xml:lang="en-US">Finite-Lived Intangible Assets, Major Class Name [Domain]</label>

    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_FiniteLivedIntangibleAssetsMajorClassNameDomain" xlink:to="lab_us-gaap_FiniteLivedIntangibleAssetsMajorClassNameDomain" />

    <loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2014/elts/us-gaap-2014-01-31.xsd#us-gaap_RoyaltyAgreementsMember" xlink:label="loc_us-gaap_RoyaltyAgreementsMember" />

    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_us-gaap_RoyaltyAgreementsMember" xml:lang="en-US">Royalty Agreements [Member]</label>

    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_RoyaltyAgreementsMember" xlink:to="lab_us-gaap_RoyaltyAgreementsMember" />

    <loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2014/elts/us-gaap-2014-01-31.xsd#us-gaap_RoyaltyExpense" xlink:label="loc_us-gaap_RoyaltyExpense" />

    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_us-gaap_RoyaltyExpense" xml:lang="en-US">Royalty Expense</label>

    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_RoyaltyExpense" xlink:to="lab_us-gaap_RoyaltyExpense" />

    <loc xlink:type="locator" xlink:href="mdgn-20140930.xsd#mdgn_RateOfRoyalties" xlink:label="loc_mdgn_RateOfRoyalties" />

    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_mdgn_RateOfRoyalties" xml:lang="en-US">Rate Of Royalties</label>

    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="lab_mdgn_RateOfRoyalties" xml:lang="en-US">Represents the rates of royalties.</label>

    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_mdgn_RateOfRoyalties" xlink:to="lab_mdgn_RateOfRoyalties" />

    <loc xlink:type="locator" xlink:href="mdgn-20140930.xsd#mdgn_MilestonePaymentForDosingFirstPatient" xlink:label="loc_mdgn_MilestonePaymentForDosingFirstPatient" />

    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_mdgn_MilestonePaymentForDosingFirstPatient" xml:lang="en-US">Milestone Payment For Dosing First Patient</label>

    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="lab_mdgn_MilestonePaymentForDosingFirstPatient" xml:lang="en-US">Represents the milestone payment for dosing first patient.</label>

    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_mdgn_MilestonePaymentForDosingFirstPatient" xlink:to="lab_mdgn_MilestonePaymentForDosingFirstPatient" />

    <loc xlink:type="locator" xlink:href="mdgn-20140930.xsd#mdgn_MilestonePaymentFirstApprovalInUsOfLicensedProduct" xlink:label="loc_mdgn_MilestonePaymentFirstApprovalInUsOfLicensedProduct" />

    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_mdgn_MilestonePaymentFirstApprovalInUsOfLicensedProduct" xml:lang="en-US">Milestone Payment First Approval In US of a Licensed Product</label>

    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="lab_mdgn_MilestonePaymentFirstApprovalInUsOfLicensedProduct" xml:lang="en-US">Represents the milestone payment upon first approval in the U.S. of a licensed product.</label>

    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_mdgn_MilestonePaymentFirstApprovalInUsOfLicensedProduct" xlink:to="lab_mdgn_MilestonePaymentFirstApprovalInUsOfLicensedProduct" />

    <loc xlink:type="locator" xlink:href="mdgn-20140930.xsd#mdgn_MilestonePaymentFirstApprovalInEuropeOrJapanOfLicensedProduct" xlink:label="loc_mdgn_MilestonePaymentFirstApprovalInEuropeOrJapanOfLicensedProduct" />

    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_mdgn_MilestonePaymentFirstApprovalInEuropeOrJapanOfLicensedProduct" xml:lang="en-US">Milestone Payment First Approval In Europe Or Japan of a Licensed Product</label>

    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="lab_mdgn_MilestonePaymentFirstApprovalInEuropeOrJapanOfLicensedProduct" xml:lang="en-US">Represents the milestone payment upon first approval in Europe or Japan of a licensed product.</label>

    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_mdgn_MilestonePaymentFirstApprovalInEuropeOrJapanOfLicensedProduct" xlink:to="lab_mdgn_MilestonePaymentFirstApprovalInEuropeOrJapanOfLicensedProduct" />

    <loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2014/elts/us-gaap-2014-01-31.xsd#us-gaap_StatementOfFinancialPositionAbstract" xlink:label="loc_us-gaap_StatementOfFinancialPositionAbstract" />

    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_us-gaap_StatementOfFinancialPositionAbstract" xml:lang="en-US">Statement Of Financial Position [Abstract]</label>

    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_StatementOfFinancialPositionAbstract" xlink:to="lab_us-gaap_StatementOfFinancialPositionAbstract" />

    <loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2014/elts/us-gaap-2014-01-31.xsd#us-gaap_StatementScenarioAxis" xlink:label="loc_us-gaap_StatementScenarioAxis" />

    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_us-gaap_StatementScenarioAxis" xml:lang="en-US">Scenario [Axis]</label>

    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_StatementScenarioAxis" xlink:to="lab_us-gaap_StatementScenarioAxis" />

    <loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2014/elts/us-gaap-2014-01-31.xsd#us-gaap_ScenarioUnspecifiedDomain" xlink:label="loc_us-gaap_ScenarioUnspecifiedDomain" />

    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_us-gaap_ScenarioUnspecifiedDomain" xml:lang="en-US">Scenario, Unspecified [Domain]</label>

    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_ScenarioUnspecifiedDomain" xlink:to="lab_us-gaap_ScenarioUnspecifiedDomain" />

    <loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2014/elts/us-gaap-2014-01-31.xsd#us-gaap_AssetsAbstract" xlink:label="loc_us-gaap_AssetsAbstract" />

    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_us-gaap_AssetsAbstract" xml:lang="en-US">Assets [Abstract]</label>

    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="lab_us-gaap_AssetsAbstract" xml:lang="en-US">ASSETS</label>

    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_AssetsAbstract" xlink:to="lab_us-gaap_AssetsAbstract" />

    <loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2014/elts/us-gaap-2014-01-31.xsd#us-gaap_AssetsCurrentAbstract" xlink:label="loc_us-gaap_AssetsCurrentAbstract" />

    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_us-gaap_AssetsCurrentAbstract" xml:lang="en-US">Assets, Current [Abstract]</label>

    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="lab_us-gaap_AssetsCurrentAbstract" xml:lang="en-US">CURRENT ASSETS:</label>

    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_AssetsCurrentAbstract" xlink:to="lab_us-gaap_AssetsCurrentAbstract" />

    <loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2014/elts/us-gaap-2014-01-31.xsd#us-gaap_CashAndCashEquivalentsAtCarryingValue" xlink:label="loc_us-gaap_CashAndCashEquivalentsAtCarryingValue" />

    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_us-gaap_CashAndCashEquivalentsAtCarryingValue" xml:lang="en-US">Cash and Cash Equivalents, At Carrying Value</label>

    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="lab_us-gaap_CashAndCashEquivalentsAtCarryingValue" xml:lang="en-US">Cash and cash equivalents</label>

    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/periodStartLabel" xlink:label="lab_us-gaap_CashAndCashEquivalentsAtCarryingValue" xml:lang="en-US">Balance of cash and cash equivalents at the beginning of the period</label>

    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/periodEndLabel" xlink:label="lab_us-gaap_CashAndCashEquivalentsAtCarryingValue" xml:lang="en-US">Balance of cash and cash equivalents at the end of the period</label>

    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_CashAndCashEquivalentsAtCarryingValue" xlink:to="lab_us-gaap_CashAndCashEquivalentsAtCarryingValue" />

    <loc xlink:type="locator" xlink:href="mdgn-20140930.xsd#mdgn_AccountsReceivableAndPrepaidExpensesCurrent" xlink:label="loc_mdgn_AccountsReceivableAndPrepaidExpensesCurrent" />

    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_mdgn_AccountsReceivableAndPrepaidExpensesCurrent" xml:lang="en-US">Accounts Receivable and Prepaid Expenses Current</label>

    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="lab_mdgn_AccountsReceivableAndPrepaidExpensesCurrent" xml:lang="en-US">Accounts receivable and prepaid expenses</label>

    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="lab_mdgn_AccountsReceivableAndPrepaidExpensesCurrent" xml:lang="en-US">Sum of amounts due from Governmental authorities and amounts paid in advance that will be expensed with the passage of time.</label>

    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_mdgn_AccountsReceivableAndPrepaidExpensesCurrent" xlink:to="lab_mdgn_AccountsReceivableAndPrepaidExpensesCurrent" />

    <loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2014/elts/us-gaap-2014-01-31.xsd#us-gaap_AssetsCurrent" xlink:label="loc_us-gaap_AssetsCurrent" />

    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_us-gaap_AssetsCurrent" xml:lang="en-US">Assets, Current</label>

    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/totalLabel" xlink:label="lab_us-gaap_AssetsCurrent" xml:lang="en-US">Total current assets</label>

    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_AssetsCurrent" xlink:to="lab_us-gaap_AssetsCurrent" />

    <loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2014/elts/us-gaap-2014-01-31.xsd#us-gaap_AssetsNoncurrentAbstract" xlink:label="loc_us-gaap_AssetsNoncurrentAbstract" />

    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_us-gaap_AssetsNoncurrentAbstract" xml:lang="en-US">Assets, Noncurrent [Abstract]</label>

    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="lab_us-gaap_AssetsNoncurrentAbstract" xml:lang="en-US">LONG-TERM ASSETS:</label>

    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_AssetsNoncurrentAbstract" xlink:to="lab_us-gaap_AssetsNoncurrentAbstract" />

    <loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2014/elts/us-gaap-2014-01-31.xsd#us-gaap_RestrictedCashAndInvestmentsNoncurrent" xlink:label="loc_us-gaap_RestrictedCashAndInvestmentsNoncurrent" />

    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_us-gaap_RestrictedCashAndInvestmentsNoncurrent" xml:lang="en-US">Restricted Cash and Investments, Noncurrent</label>

    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="lab_us-gaap_RestrictedCashAndInvestmentsNoncurrent" xml:lang="en-US">Restricted lease deposits</label>

    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_RestrictedCashAndInvestmentsNoncurrent" xlink:to="lab_us-gaap_RestrictedCashAndInvestmentsNoncurrent" />

    <loc xlink:type="locator" xlink:href="mdgn-20140930.xsd#mdgn_SeverancePayFundNoncurrent" xlink:label="loc_mdgn_SeverancePayFundNoncurrent" />

    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_mdgn_SeverancePayFundNoncurrent" xml:lang="en-US">Severance Pay Fund Noncurrent</label>

    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="lab_mdgn_SeverancePayFundNoncurrent" xml:lang="en-US">Severance pay fund</label>

    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="lab_mdgn_SeverancePayFundNoncurrent" xml:lang="en-US">The value of the fund for termination benefits provided to current employees that are terminated.</label>

    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_mdgn_SeverancePayFundNoncurrent" xlink:to="lab_mdgn_SeverancePayFundNoncurrent" />

    <loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2014/elts/us-gaap-2014-01-31.xsd#us-gaap_PropertyPlantAndEquipmentNet" xlink:label="loc_us-gaap_PropertyPlantAndEquipmentNet" />

    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_us-gaap_PropertyPlantAndEquipmentNet" xml:lang="en-US">Property, Plant and Equipment, Net</label>

    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="lab_us-gaap_PropertyPlantAndEquipmentNet" xml:lang="en-US">Property and equipment, net</label>

    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_PropertyPlantAndEquipmentNet" xlink:to="lab_us-gaap_PropertyPlantAndEquipmentNet" />

    <loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2014/elts/us-gaap-2014-01-31.xsd#us-gaap_Assets" xlink:label="loc_us-gaap_Assets" />

    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_us-gaap_Assets" xml:lang="en-US">Assets</label>

    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/totalLabel" xlink:label="lab_us-gaap_Assets" xml:lang="en-US">Total assets</label>

    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_Assets" xlink:to="lab_us-gaap_Assets" />

    <loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2014/elts/us-gaap-2014-01-31.xsd#us-gaap_LiabilitiesAndStockholdersEquityAbstract" xlink:label="loc_us-gaap_LiabilitiesAndStockholdersEquityAbstract" />

    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_us-gaap_LiabilitiesAndStockholdersEquityAbstract" xml:lang="en-US">Liabilities and Equity [Abstract]</label>

    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="lab_us-gaap_LiabilitiesAndStockholdersEquityAbstract" xml:lang="en-US">LIABILITIES AND STOCKHOLDERS&#39; EQUITY</label>

    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_LiabilitiesAndStockholdersEquityAbstract" xlink:to="lab_us-gaap_LiabilitiesAndStockholdersEquityAbstract" />

    <loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2014/elts/us-gaap-2014-01-31.xsd#us-gaap_LiabilitiesCurrentAbstract" xlink:label="loc_us-gaap_LiabilitiesCurrentAbstract" />

    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_us-gaap_LiabilitiesCurrentAbstract" xml:lang="en-US">Liabilities, Current [Abstract]</label>

    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="lab_us-gaap_LiabilitiesCurrentAbstract" xml:lang="en-US">CURRENT LIABILITIES:</label>

    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_LiabilitiesCurrentAbstract" xlink:to="lab_us-gaap_LiabilitiesCurrentAbstract" />

    <loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2014/elts/us-gaap-2014-01-31.xsd#us-gaap_AccountsPayableTradeCurrent" xlink:label="loc_us-gaap_AccountsPayableTradeCurrent" />

    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_us-gaap_AccountsPayableTradeCurrent" xml:lang="en-US">Accounts Payable, Trade, Current</label>

    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="lab_us-gaap_AccountsPayableTradeCurrent" xml:lang="en-US">Trade payables</label>

    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_AccountsPayableTradeCurrent" xlink:to="lab_us-gaap_AccountsPayableTradeCurrent" />

    <loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2014/elts/us-gaap-2014-01-31.xsd#us-gaap_OtherAccountsPayableAndAccruedLiabilities" xlink:label="loc_us-gaap_OtherAccountsPayableAndAccruedLiabilities" />

    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_us-gaap_OtherAccountsPayableAndAccruedLiabilities" xml:lang="en-US">Other Accounts Payable and Accrued Liabilities</label>

    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="lab_us-gaap_OtherAccountsPayableAndAccruedLiabilities" xml:lang="en-US">Other accounts payable and accrued expenses</label>

    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_OtherAccountsPayableAndAccruedLiabilities" xlink:to="lab_us-gaap_OtherAccountsPayableAndAccruedLiabilities" />

    <loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2014/elts/us-gaap-2014-01-31.xsd#us-gaap_LiabilitiesCurrent" xlink:label="loc_us-gaap_LiabilitiesCurrent" />

    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_us-gaap_LiabilitiesCurrent" xml:lang="en-US">Liabilities, Current</label>

    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/totalLabel" xlink:label="lab_us-gaap_LiabilitiesCurrent" xml:lang="en-US">Total current liabilities</label>

    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_LiabilitiesCurrent" xlink:to="lab_us-gaap_LiabilitiesCurrent" />

    <loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2014/elts/us-gaap-2014-01-31.xsd#us-gaap_LiabilitiesNoncurrentAbstract" xlink:label="loc_us-gaap_LiabilitiesNoncurrentAbstract" />

    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_us-gaap_LiabilitiesNoncurrentAbstract" xml:lang="en-US">Liabilities, Noncurrent [Abstract]</label>

    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="lab_us-gaap_LiabilitiesNoncurrentAbstract" xml:lang="en-US">LONG-TERM LIABILITIES:</label>

    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_LiabilitiesNoncurrentAbstract" xlink:to="lab_us-gaap_LiabilitiesNoncurrentAbstract" />

    <loc xlink:type="locator" xlink:href="mdgn-20140930.xsd#mdgn_AccruedSeverancePay" xlink:label="loc_mdgn_AccruedSeverancePay" />

    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_mdgn_AccruedSeverancePay" xml:lang="en-US">Accrued Severance Pay</label>

    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="lab_mdgn_AccruedSeverancePay" xml:lang="en-US">Accrued severance pay</label>

    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="lab_mdgn_AccruedSeverancePay" xml:lang="en-US">The compensation that an employer provides to an employee who has been laid off, whose job has been eliminated, who through mutual agreement has decided to leave the company, or who has parted ways with the company for other reasons.</label>

    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_mdgn_AccruedSeverancePay" xlink:to="lab_mdgn_AccruedSeverancePay" />

    <loc xlink:type="locator" xlink:href="mdgn-20140930.xsd#mdgn_WarrantLiability" xlink:label="loc_mdgn_WarrantLiability" />

    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_mdgn_WarrantLiability" xml:lang="en-US">Warrant Liability</label>

    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="lab_mdgn_WarrantLiability" xml:lang="en-US">Liability in respect of warrants</label>

    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="lab_mdgn_WarrantLiability" xml:lang="en-US">A liability account that reports the estimated amount that a company will have to spend to repair or replace a product during its warranty period. The liability amount is recorded at the time of the sale. (It is also the time when the expense is reported.) The liability will be reduced by the actual expenditures to repair or replace the product. Warranty Payable or Warranty Liability is considered to be a contingent liability that is both probable and capable of being estimated.</label>

    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_mdgn_WarrantLiability" xlink:to="lab_mdgn_WarrantLiability" />

    <loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2014/elts/us-gaap-2014-01-31.xsd#us-gaap_LiabilitiesNoncurrent" xlink:label="loc_us-gaap_LiabilitiesNoncurrent" />

    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_us-gaap_LiabilitiesNoncurrent" xml:lang="en-US">Liabilities, Noncurrent</label>

    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/totalLabel" xlink:label="lab_us-gaap_LiabilitiesNoncurrent" xml:lang="en-US">Total long-term liabilities</label>

    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_LiabilitiesNoncurrent" xlink:to="lab_us-gaap_LiabilitiesNoncurrent" />

    <loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2014/elts/us-gaap-2014-01-31.xsd#us-gaap_Liabilities" xlink:label="loc_us-gaap_Liabilities" />

    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_us-gaap_Liabilities" xml:lang="en-US">Liabilities</label>

    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/totalLabel" xlink:label="lab_us-gaap_Liabilities" xml:lang="en-US">Total liabilities</label>

    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_Liabilities" xlink:to="lab_us-gaap_Liabilities" />

    <loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2014/elts/us-gaap-2014-01-31.xsd#us-gaap_StockholdersEquityAbstract" xlink:label="loc_us-gaap_StockholdersEquityAbstract" />

    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_us-gaap_StockholdersEquityAbstract" xml:lang="en-US">Stockholders Equity Attributable To Parent [Abstract]</label>

    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="lab_us-gaap_StockholdersEquityAbstract" xml:lang="en-US">STOCKHOLDERS&#39; EQUITY:</label>

    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_StockholdersEquityAbstract" xlink:to="lab_us-gaap_StockholdersEquityAbstract" />

    <loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2014/elts/us-gaap-2014-01-31.xsd#us-gaap_CommonStockValue" xlink:label="loc_us-gaap_CommonStockValue" />

    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_us-gaap_CommonStockValue" xml:lang="en-US">Common Stock, Value, Issued</label>

    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="lab_us-gaap_CommonStockValue" xml:lang="en-US">Common stock - $0.0001 par value; 100,000,000 shares authorized; 18,917,403 shares issued and 18,908,903 shares outstanding at September 30, 2014;18,497,307 shares issued and outstanding at December 31, 2013</label>

    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_CommonStockValue" xlink:to="lab_us-gaap_CommonStockValue" />

    <loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2014/elts/us-gaap-2014-01-31.xsd#us-gaap_AdditionalPaidInCapitalCommonStock" xlink:label="loc_us-gaap_AdditionalPaidInCapitalCommonStock" />

    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_us-gaap_AdditionalPaidInCapitalCommonStock" xml:lang="en-US">Additional Paid In Capital, Common Stock</label>

    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="lab_us-gaap_AdditionalPaidInCapitalCommonStock" xml:lang="en-US">Additional paid-in capital</label>

    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_AdditionalPaidInCapitalCommonStock" xlink:to="lab_us-gaap_AdditionalPaidInCapitalCommonStock" />

    <loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2014/elts/us-gaap-2014-01-31.xsd#us-gaap_RetainedEarningsAccumulatedDeficit" xlink:label="loc_us-gaap_RetainedEarningsAccumulatedDeficit" />

    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_us-gaap_RetainedEarningsAccumulatedDeficit" xml:lang="en-US">Retained Earnings (Accumulated Deficit), Total</label>

    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/definitionGuidance" xlink:label="lab_us-gaap_RetainedEarningsAccumulatedDeficit" xml:lang="en-US">Accumulated deficit</label>

    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_RetainedEarningsAccumulatedDeficit" xlink:to="lab_us-gaap_RetainedEarningsAccumulatedDeficit" />

    <loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2014/elts/us-gaap-2014-01-31.xsd#us-gaap_StockholdersEquity" xlink:label="loc_us-gaap_StockholdersEquity" />

    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_us-gaap_StockholdersEquity" xml:lang="en-US">Total Stockholders&#39; Equity</label>

    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/totalLabel" xlink:label="lab_us-gaap_StockholdersEquity" xml:lang="en-US">Total stockholders&#39; equity</label>

    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/periodStartLabel" xlink:label="lab_us-gaap_StockholdersEquity" xml:lang="en-US">Balance</label>

    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/periodEndLabel" xlink:label="lab_us-gaap_StockholdersEquity" xml:lang="en-US">Balance</label>

    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_StockholdersEquity" xlink:to="lab_us-gaap_StockholdersEquity" />

    <loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2014/elts/us-gaap-2014-01-31.xsd#us-gaap_LiabilitiesAndStockholdersEquity" xlink:label="loc_us-gaap_LiabilitiesAndStockholdersEquity" />

    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_us-gaap_LiabilitiesAndStockholdersEquity" xml:lang="en-US">Liabilities and Equity</label>

    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/totalLabel" xlink:label="lab_us-gaap_LiabilitiesAndStockholdersEquity" xml:lang="en-US">Total liabilities and stockholders&#39; equity</label>

    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_LiabilitiesAndStockholdersEquity" xlink:to="lab_us-gaap_LiabilitiesAndStockholdersEquity" />

    <loc xlink:type="locator" xlink:href="mdgn-20140930.xsd#mdgn_StockholdersEquityTable" xlink:label="loc_mdgn_StockholdersEquityTable" />

    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_mdgn_StockholdersEquityTable" xml:lang="en-US">Stockholders Equity [Table]</label>

    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="lab_mdgn_StockholdersEquityTable" xml:lang="en-US">Disclosure of information about stockholdres equity represents common stock, preferred stock and other securities related to the company.</label>

    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_mdgn_StockholdersEquityTable" xlink:to="lab_mdgn_StockholdersEquityTable" />

    <loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2014/elts/us-gaap-2014-01-31.xsd#us-gaap_AwardTypeAxis" xlink:label="loc_us-gaap_AwardTypeAxis" />

    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_us-gaap_AwardTypeAxis" xml:lang="en-US">Award Type [Axis]</label>

    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_AwardTypeAxis" xlink:to="lab_us-gaap_AwardTypeAxis" />

    <loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2014/elts/us-gaap-2014-01-31.xsd#us-gaap_ShareBasedCompensationArrangementsByShareBasedPaymentAwardAwardTypeAndPlanNameDomain" xlink:label="loc_us-gaap_ShareBasedCompensationArrangementsByShareBasedPaymentAwardAwardTypeAndPlanNameDomain" />

    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_us-gaap_ShareBasedCompensationArrangementsByShareBasedPaymentAwardAwardTypeAndPlanNameDomain" xml:lang="en-US">Equity Award [Domain]</label>

    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_ShareBasedCompensationArrangementsByShareBasedPaymentAwardAwardTypeAndPlanNameDomain" xlink:to="lab_us-gaap_ShareBasedCompensationArrangementsByShareBasedPaymentAwardAwardTypeAndPlanNameDomain" />

    <loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2014/elts/us-gaap-2014-01-31.xsd#us-gaap_RestrictedStockMember" xlink:label="loc_us-gaap_RestrictedStockMember" />

    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_us-gaap_RestrictedStockMember" xml:lang="en-US">Restricted Stock [Member]</label>

    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_RestrictedStockMember" xlink:to="lab_us-gaap_RestrictedStockMember" />

    <loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2014/elts/us-gaap-2014-01-31.xsd#us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardLineItems" xlink:label="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardLineItems" />

    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardLineItems" xml:lang="en-US">Share-based Compensation Arrangement by Share-based Payment Award [Line Items]</label>

    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardLineItems" xlink:to="lab_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardLineItems" />

    <loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2014/elts/us-gaap-2014-01-31.xsd#us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedNumber" xlink:label="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedNumber" />

    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedNumber" xml:lang="en-US">Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Nonvested, Number, Beginning Balance</label>

    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/periodStartLabel" xlink:label="lab_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedNumber" xml:lang="en-US">Number of restricted shares as of December 31, 2013</label>

    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/periodEndLabel" xlink:label="lab_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedNumber" xml:lang="en-US">Number of restricted shares as of September 30, 2014</label>

    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedNumber" xlink:to="lab_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedNumber" />

    <loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2014/elts/us-gaap-2014-01-31.xsd#us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsVestedInPeriod" xlink:label="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsVestedInPeriod" />

    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsVestedInPeriod" xml:lang="en-US">Share-Based Compensation Arrangement By Share-Based Payment Award, Equity Instruments Other Than Options, Vested In Period</label>

    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2009/role/negatedLabel" xlink:label="lab_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsVestedInPeriod" xml:lang="en-US">Vested</label>

    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsVestedInPeriod" xlink:to="lab_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsVestedInPeriod" />

    <loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2014/elts/us-gaap-2014-01-31.xsd#us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsForfeitedInPeriod" xlink:label="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsForfeitedInPeriod" />

    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsForfeitedInPeriod" xml:lang="en-US">Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Forfeited in Period</label>

    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2009/role/negatedLabel" xlink:label="lab_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsForfeitedInPeriod" xml:lang="en-US">Forfeited</label>

    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsForfeitedInPeriod" xlink:to="lab_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsForfeitedInPeriod" />

    <loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2014/elts/us-gaap-2014-01-31.xsd#us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsGrantsInPeriod" xlink:label="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsGrantsInPeriod" />

    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsGrantsInPeriod" xml:lang="en-US">Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Grants in Period</label>

    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="lab_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsGrantsInPeriod" xml:lang="en-US">Granted</label>

    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsGrantsInPeriod" xlink:to="lab_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsGrantsInPeriod" />

    <loc xlink:type="locator" xlink:href="mdgn-20140930.xsd#mdgn_EmployeesAndDirectorsMember" xlink:label="loc_mdgn_EmployeesAndDirectorsMember" />

    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_mdgn_EmployeesAndDirectorsMember" xml:lang="en-US">Employees and Directors [Member]</label>

    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_mdgn_EmployeesAndDirectorsMember" xlink:to="lab_mdgn_EmployeesAndDirectorsMember" />

    <loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2014/elts/us-gaap-2014-01-31.xsd#us-gaap_ShareBasedGoodsAndNonemployeeServicesTransactionBySupplierAxis" xlink:label="loc_us-gaap_ShareBasedGoodsAndNonemployeeServicesTransactionBySupplierAxis" />

    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_us-gaap_ShareBasedGoodsAndNonemployeeServicesTransactionBySupplierAxis" xml:lang="en-US">Supplier [Axis]</label>

    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_ShareBasedGoodsAndNonemployeeServicesTransactionBySupplierAxis" xlink:to="lab_us-gaap_ShareBasedGoodsAndNonemployeeServicesTransactionBySupplierAxis" />

    <loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2014/elts/us-gaap-2014-01-31.xsd#us-gaap_ShareBasedGoodsAndNonemployeeServicesTransactionSupplierDomain" xlink:label="loc_us-gaap_ShareBasedGoodsAndNonemployeeServicesTransactionSupplierDomain" />

    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_us-gaap_ShareBasedGoodsAndNonemployeeServicesTransactionSupplierDomain" xml:lang="en-US">Share-based Goods and Nonemployee Services Transaction, Supplier [Domain]</label>

    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_ShareBasedGoodsAndNonemployeeServicesTransactionSupplierDomain" xlink:to="lab_us-gaap_ShareBasedGoodsAndNonemployeeServicesTransactionSupplierDomain" />

    <loc xlink:type="locator" xlink:href="mdgn-20140930.xsd#mdgn_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsAndWarrantsOutstandingNumber" xlink:label="loc_mdgn_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsAndWarrantsOutstandingNumber" />

    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_mdgn_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsAndWarrantsOutstandingNumber" xml:lang="en-US">Share Based Compensation Arrangement By Share Based Payment Award Options and Warrants Outstanding Number</label>

    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/periodStartLabel" xlink:label="lab_mdgn_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsAndWarrantsOutstandingNumber" xml:lang="en-US">Number of options and warrants, Outstanding - Beginning Balance</label>

    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/periodEndLabel" xlink:label="lab_mdgn_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsAndWarrantsOutstandingNumber" xml:lang="en-US">Number of options and warrants, Outstanding - Ending Balance</label>

    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="lab_mdgn_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsAndWarrantsOutstandingNumber" xml:lang="en-US">The number of shares reserved for issuance under stock options and warrants agreements awarded that validly exist and are outstanding as of the balance sheet date, including vested options.</label>

    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_mdgn_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsAndWarrantsOutstandingNumber" xlink:to="lab_mdgn_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsAndWarrantsOutstandingNumber" />

    <loc xlink:type="locator" xlink:href="mdgn-20140930.xsd#mdgn_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsAndWarrantsGrantsInPeriodGross" xlink:label="loc_mdgn_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsAndWarrantsGrantsInPeriodGross" />

    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_mdgn_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsAndWarrantsGrantsInPeriodGross" xml:lang="en-US">Share Based Compensation Arrangement By Share Based Payment Award Options and Warrants Grants In Period Gross</label>

    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="lab_mdgn_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsAndWarrantsGrantsInPeriodGross" xml:lang="en-US">Number of options and warrants, Granted</label>

    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="lab_mdgn_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsAndWarrantsGrantsInPeriodGross" xml:lang="en-US">Number of share options and warrants granted during the period.</label>

    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_mdgn_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsAndWarrantsGrantsInPeriodGross" xlink:to="lab_mdgn_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsAndWarrantsGrantsInPeriodGross" />

    <loc xlink:type="locator" xlink:href="mdgn-20140930.xsd#mdgn_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsAndWarrantsForfeited" xlink:label="loc_mdgn_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsAndWarrantsForfeited" />

    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_mdgn_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsAndWarrantsForfeited" xml:lang="en-US">Share Based Compensation Arrangement By Share Based Payment Award Options And Warrants Forfeited</label>

    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2009/role/negatedLabel" xlink:label="lab_mdgn_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsAndWarrantsForfeited" xml:lang="en-US">Number of options and warrants, Forfeited</label>

    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="lab_mdgn_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsAndWarrantsForfeited" xml:lang="en-US">Number of share options and warrants forfeited during the period.</label>

    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_mdgn_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsAndWarrantsForfeited" xlink:to="lab_mdgn_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsAndWarrantsForfeited" />

    <loc xlink:type="locator" xlink:href="mdgn-20140930.xsd#mdgn_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsAndWarrantsExercised" xlink:label="loc_mdgn_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsAndWarrantsExercised" />

    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_mdgn_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsAndWarrantsExercised" xml:lang="en-US">Share Based Compensation Arrangement By Share Based Payment Award Options and Warrants Exercised</label>

    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2009/role/negatedLabel" xlink:label="lab_mdgn_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsAndWarrantsExercised" xml:lang="en-US">Number of options and warrants, Exercised</label>

    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="lab_mdgn_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsAndWarrantsExercised" xml:lang="en-US">Number of share options and warrants exercised during the current period.</label>

    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_mdgn_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsAndWarrantsExercised" xlink:to="lab_mdgn_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsAndWarrantsExercised" />

    <loc xlink:type="locator" xlink:href="mdgn-20140930.xsd#mdgn_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsAndWarrantsVestedAndExpectedToVestOutstandingNumber" xlink:label="loc_mdgn_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsAndWarrantsVestedAndExpectedToVestOutstandingNumber" />

    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_mdgn_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsAndWarrantsVestedAndExpectedToVestOutstandingNumber" xml:lang="en-US">Share Based Compensation Arrangement By Share Based Payment Award Options and Warrants Vested and Expected To Vest Outstanding Number</label>

    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="lab_mdgn_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsAndWarrantsVestedAndExpectedToVestOutstandingNumber" xml:lang="en-US">Number of options and warrants, Vested and expected to vest</label>

    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="lab_mdgn_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsAndWarrantsVestedAndExpectedToVestOutstandingNumber" xml:lang="en-US">As of the balance sheet date, the number of shares into which fully vested and expected to vest stock options and warrants outstanding can be converted.</label>

    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_mdgn_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsAndWarrantsVestedAndExpectedToVestOutstandingNumber" xlink:to="lab_mdgn_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsAndWarrantsVestedAndExpectedToVestOutstandingNumber" />

    <loc xlink:type="locator" xlink:href="mdgn-20140930.xsd#mdgn_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsAndWarrantsOutstandingExercisableNumber" xlink:label="loc_mdgn_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsAndWarrantsOutstandingExercisableNumber" />

    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_mdgn_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsAndWarrantsOutstandingExercisableNumber" xml:lang="en-US">Share Based Compensation Arrangement By Share Based Payment Award Options and Warrants Outstanding Exercisable Number</label>

    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="lab_mdgn_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsAndWarrantsOutstandingExercisableNumber" xml:lang="en-US">Number of options and warrants, Exercisable</label>

    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="lab_mdgn_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsAndWarrantsOutstandingExercisableNumber" xml:lang="en-US">The number of shares into which fully or partially vested stock options and warrants outstanding as of the balance sheet date can be currently converted.</label>

    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_mdgn_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsAndWarrantsOutstandingExercisableNumber" xlink:to="lab_mdgn_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsAndWarrantsOutstandingExercisableNumber" />

    <loc xlink:type="locator" xlink:href="mdgn-20140930.xsd#mdgn_ShareBasedCompensationArrangementByShareBasedPaymentAwardWarrantAndOptionsOutstandingWeightedAverageExercisePrice" xlink:label="loc_mdgn_ShareBasedCompensationArrangementByShareBasedPaymentAwardWarrantAndOptionsOutstandingWeightedAverageExercisePrice" />

    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_mdgn_ShareBasedCompensationArrangementByShareBasedPaymentAwardWarrantAndOptionsOutstandingWeightedAverageExercisePrice" xml:lang="en-US">Share Based Compensation Arrangement By Share Based Payment Award Warrant and Options Outstanding Weighted Average Exercise Price</label>

    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/periodStartLabel" xlink:label="lab_mdgn_ShareBasedCompensationArrangementByShareBasedPaymentAwardWarrantAndOptionsOutstandingWeightedAverageExercisePrice" xml:lang="en-US">Weighted average exercise price, Outstanding - Beginning Balance</label>

    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/periodEndLabel" xlink:label="lab_mdgn_ShareBasedCompensationArrangementByShareBasedPaymentAwardWarrantAndOptionsOutstandingWeightedAverageExercisePrice" xml:lang="en-US">Weighted average exercise price, Outstanding - Ending Balance</label>

    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="lab_mdgn_ShareBasedCompensationArrangementByShareBasedPaymentAwardWarrantAndOptionsOutstandingWeightedAverageExercisePrice" xml:lang="en-US">Weighted average price at which grantees can acquire the options and warrants reserved for issuance.</label>

    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_mdgn_ShareBasedCompensationArrangementByShareBasedPaymentAwardWarrantAndOptionsOutstandingWeightedAverageExercisePrice" xlink:to="lab_mdgn_ShareBasedCompensationArrangementByShareBasedPaymentAwardWarrantAndOptionsOutstandingWeightedAverageExercisePrice" />

    <loc xlink:type="locator" xlink:href="mdgn-20140930.xsd#mdgn_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsAndWarrantsGrantedToEmployeesAndDirectorsWeightedAverageGrantDateFairValue" xlink:label="loc_mdgn_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsAndWarrantsGrantedToEmployeesAndDirectorsWeightedAverageGrantDateFairValue" />

    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_mdgn_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsAndWarrantsGrantedToEmployeesAndDirectorsWeightedAverageGrantDateFairValue" xml:lang="en-US">Share Based Compensation Arrangement By Share Based Payment Award Options And Warrants Granted To Employees And Directors Weighted Average Grant Date Fair Value</label>

    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="lab_mdgn_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsAndWarrantsGrantedToEmployeesAndDirectorsWeightedAverageGrantDateFairValue" xml:lang="en-US">Weighted average exercise price, Granted</label>

    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="lab_mdgn_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsAndWarrantsGrantedToEmployeesAndDirectorsWeightedAverageGrantDateFairValue" xml:lang="en-US">The weighted average grant-date fair value of options and warrants granted to employees and directors during the reporting period.</label>

    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_mdgn_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsAndWarrantsGrantedToEmployeesAndDirectorsWeightedAverageGrantDateFairValue" xlink:to="lab_mdgn_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsAndWarrantsGrantedToEmployeesAndDirectorsWeightedAverageGrantDateFairValue" />

    <loc xlink:type="locator" xlink:href="mdgn-20140930.xsd#mdgn_ShareBasedCompensationArrangementByShareBasedPaymentAwardWarrantAndOptionsForfeitedWeightedAverageExercisePrice" xlink:label="loc_mdgn_ShareBasedCompensationArrangementByShareBasedPaymentAwardWarrantAndOptionsForfeitedWeightedAverageExercisePrice" />

    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_mdgn_ShareBasedCompensationArrangementByShareBasedPaymentAwardWarrantAndOptionsForfeitedWeightedAverageExercisePrice" xml:lang="en-US">Share Based Compensation Arrangement By Share Based Payment Award Warrant and Options Forfeited Weighted Average Exercise Price</label>

    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="lab_mdgn_ShareBasedCompensationArrangementByShareBasedPaymentAwardWarrantAndOptionsForfeitedWeightedAverageExercisePrice" xml:lang="en-US">Weighted average exercise price, Forfeited</label>

    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="lab_mdgn_ShareBasedCompensationArrangementByShareBasedPaymentAwardWarrantAndOptionsForfeitedWeightedAverageExercisePrice" xml:lang="en-US">Weighted average price at which grantees can acquire the options and warrants is forfeited.</label>

    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_mdgn_ShareBasedCompensationArrangementByShareBasedPaymentAwardWarrantAndOptionsForfeitedWeightedAverageExercisePrice" xlink:to="lab_mdgn_ShareBasedCompensationArrangementByShareBasedPaymentAwardWarrantAndOptionsForfeitedWeightedAverageExercisePrice" />

    <loc xlink:type="locator" xlink:href="mdgn-20140930.xsd#mdgn_ShareBasedCompensationArrangementByShareBasedPaymentAwardWarrantAndOptionsExercisesInPeriodWeightedAverageExercisePrice" xlink:label="loc_mdgn_ShareBasedCompensationArrangementByShareBasedPaymentAwardWarrantAndOptionsExercisesInPeriodWeightedAverageExercisePrice" />

    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_mdgn_ShareBasedCompensationArrangementByShareBasedPaymentAwardWarrantAndOptionsExercisesInPeriodWeightedAverageExercisePrice" xml:lang="en-US">Share Based Compensation Arrangement By Share Based Payment Award Warrant and Options Exercises In Period Weighted Average Exercise Price</label>

    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="lab_mdgn_ShareBasedCompensationArrangementByShareBasedPaymentAwardWarrantAndOptionsExercisesInPeriodWeightedAverageExercisePrice" xml:lang="en-US">Weighted average exercise price, Exercised</label>

    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="lab_mdgn_ShareBasedCompensationArrangementByShareBasedPaymentAwardWarrantAndOptionsExercisesInPeriodWeightedAverageExercisePrice" xml:lang="en-US">Weighted average price at which option holders acquired options and warrants when converting their stock options into shares.</label>

    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_mdgn_ShareBasedCompensationArrangementByShareBasedPaymentAwardWarrantAndOptionsExercisesInPeriodWeightedAverageExercisePrice" xlink:to="lab_mdgn_ShareBasedCompensationArrangementByShareBasedPaymentAwardWarrantAndOptionsExercisesInPeriodWeightedAverageExercisePrice" />

    <loc xlink:type="locator" xlink:href="mdgn-20140930.xsd#mdgn_ShareBasedCompensationArrangementByShareBasedPaymentAwardWarrantAndOptionsVestedAndExpectedToVestOutstandingWeightedAverageExercisePrice" xlink:label="loc_mdgn_ShareBasedCompensationArrangementByShareBasedPaymentAwardWarrantAndOptionsVestedAndExpectedToVestOutstandingWeightedAverageExercisePrice" />

    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_mdgn_ShareBasedCompensationArrangementByShareBasedPaymentAwardWarrantAndOptionsVestedAndExpectedToVestOutstandingWeightedAverageExercisePrice" xml:lang="en-US">Share Based Compensation Arrangement By Share Based Payment Award Warrant and Options Vested and Expected To Vest Outstanding Weighted Average Exercise Price</label>

    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="lab_mdgn_ShareBasedCompensationArrangementByShareBasedPaymentAwardWarrantAndOptionsVestedAndExpectedToVestOutstandingWeightedAverageExercisePrice" xml:lang="en-US">Weighted average exercise price, Vested and expected to vest</label>

    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="lab_mdgn_ShareBasedCompensationArrangementByShareBasedPaymentAwardWarrantAndOptionsVestedAndExpectedToVestOutstandingWeightedAverageExercisePrice" xml:lang="en-US">As of the balance sheet date, the weighted-average exercise price for outstanding stock options and warrants that are fully vested or expected to vest.</label>

    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_mdgn_ShareBasedCompensationArrangementByShareBasedPaymentAwardWarrantAndOptionsVestedAndExpectedToVestOutstandingWeightedAverageExercisePrice" xlink:to="lab_mdgn_ShareBasedCompensationArrangementByShareBasedPaymentAwardWarrantAndOptionsVestedAndExpectedToVestOutstandingWeightedAverageExercisePrice" />

    <loc xlink:type="locator" xlink:href="mdgn-20140930.xsd#mdgn_ShareBasedCompensationArrangementByShareBasedPaymentAwardWarrantAndOptionsExercisableWeightedAverageExercisePrice" xlink:label="loc_mdgn_ShareBasedCompensationArrangementByShareBasedPaymentAwardWarrantAndOptionsExercisableWeightedAverageExercisePrice" />

    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_mdgn_ShareBasedCompensationArrangementByShareBasedPaymentAwardWarrantAndOptionsExercisableWeightedAverageExercisePrice" xml:lang="en-US">Share Based Compensation Arrangement By Share Based Payment Award Warrant and Options Exercisable Weighted Average Exercise Price</label>

    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="lab_mdgn_ShareBasedCompensationArrangementByShareBasedPaymentAwardWarrantAndOptionsExercisableWeightedAverageExercisePrice" xml:lang="en-US">Weighted average exercise price, Exercisable</label>

    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="lab_mdgn_ShareBasedCompensationArrangementByShareBasedPaymentAwardWarrantAndOptionsExercisableWeightedAverageExercisePrice" xml:lang="en-US">The weighted-average price as of the balance sheet date at which grantees can acquire the options and warrants reserved for issuance on vested portions of options outstanding and currently exercisable.</label>

    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_mdgn_ShareBasedCompensationArrangementByShareBasedPaymentAwardWarrantAndOptionsExercisableWeightedAverageExercisePrice" xlink:to="lab_mdgn_ShareBasedCompensationArrangementByShareBasedPaymentAwardWarrantAndOptionsExercisableWeightedAverageExercisePrice" />

    <loc xlink:type="locator" xlink:href="mdgn-20140930.xsd#mdgn_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsAndWarrantsOutstandingWeightedAverageExercisePriceContractualTerm" xlink:label="loc_mdgn_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsAndWarrantsOutstandingWeightedAverageExercisePriceContractualTerm" />

    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_mdgn_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsAndWarrantsOutstandingWeightedAverageExercisePriceContractualTerm" xml:lang="en-US">Share Based Compensation Arrangement By Share Based Payment Award Options and Warrants Outstanding Weighted Average Exercise Price Contractual Term</label>

    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="lab_mdgn_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsAndWarrantsOutstandingWeightedAverageExercisePriceContractualTerm" xml:lang="en-US">Weighted average remaining contractual terms (years), Outstanding</label>

    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="lab_mdgn_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsAndWarrantsOutstandingWeightedAverageExercisePriceContractualTerm" xml:lang="en-US">Weighted average remaining contractual term for option s and warrants outstanding, in &#39;PnYnMnDTnHnMnS&#39; format, for example, &#39;P1Y5M13D&#39; represents the reported fact of one year, five months, and thirteen days.</label>

    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_mdgn_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsAndWarrantsOutstandingWeightedAverageExercisePriceContractualTerm" xlink:to="lab_mdgn_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsAndWarrantsOutstandingWeightedAverageExercisePriceContractualTerm" />

    <loc xlink:type="locator" xlink:href="mdgn-20140930.xsd#mdgn_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsAndWarrantsVestedAndExpectedToVestOutstandingWeightedAverageExercisePriceContractualTerm" xlink:label="loc_mdgn_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsAndWarrantsVestedAndExpectedToVestOutstandingWeightedAverageExercisePriceContractualTerm" />

    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_mdgn_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsAndWarrantsVestedAndExpectedToVestOutstandingWeightedAverageExercisePriceContractualTerm" xml:lang="en-US">Share Based Compensation Arrangement By Share Based Payment Award Options and Warrants Vested and Expected To Vest Outstanding Weighted Average Exercise Price Contractual Term</label>

    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="lab_mdgn_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsAndWarrantsVestedAndExpectedToVestOutstandingWeightedAverageExercisePriceContractualTerm" xml:lang="en-US">Weighted average remaining contractual terms (years), Vested and expected to vest</label>

    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="lab_mdgn_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsAndWarrantsVestedAndExpectedToVestOutstandingWeightedAverageExercisePriceContractualTerm" xml:lang="en-US">Weighted average remaining contractual term for fully vested and expected to vest options and warrants outstanding, in &#39;PnYnMnDTnHnMnS&#39; format, for example, &#39;P1Y5M13D&#39; represents the reported fact of one year, five months, and thirteen days.</label>

    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_mdgn_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsAndWarrantsVestedAndExpectedToVestOutstandingWeightedAverageExercisePriceContractualTerm" xlink:to="lab_mdgn_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsAndWarrantsVestedAndExpectedToVestOutstandingWeightedAverageExercisePriceContractualTerm" />

    <loc xlink:type="locator" xlink:href="mdgn-20140930.xsd#mdgn_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsAndWarrantsExercisableWeightedAverageExercisePriceContractualTerm" xlink:label="loc_mdgn_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsAndWarrantsExercisableWeightedAverageExercisePriceContractualTerm" />

    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_mdgn_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsAndWarrantsExercisableWeightedAverageExercisePriceContractualTerm" xml:lang="en-US">Share Based Compensation Arrangement By Share Based Payment Award Options and Warrants Exercisable Weighted Average Exercise Price Contractual Term</label>

    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="lab_mdgn_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsAndWarrantsExercisableWeightedAverageExercisePriceContractualTerm" xml:lang="en-US">Weighted average remaining contractual terms (years), Exercisable</label>

    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="lab_mdgn_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsAndWarrantsExercisableWeightedAverageExercisePriceContractualTerm" xml:lang="en-US">Weighted average remaining contractual term for vested portions of options and warrants outstanding and currently exercisable or convertible, in &#39;PnYnMnDTnHnMnS&#39; format, for example, &#39;P1Y5M13D&#39; represents the reported fact of one year, five months, and thirteen days.</label>

    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_mdgn_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsAndWarrantsExercisableWeightedAverageExercisePriceContractualTerm" xlink:to="lab_mdgn_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsAndWarrantsExercisableWeightedAverageExercisePriceContractualTerm" />

    <loc xlink:type="locator" xlink:href="mdgn-20140930.xsd#mdgn_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsAndWarrantsOutstandingIntrinsicValue" xlink:label="loc_mdgn_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsAndWarrantsOutstandingIntrinsicValue" />

    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_mdgn_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsAndWarrantsOutstandingIntrinsicValue" xml:lang="en-US">Share Based Compensation Arrangement By Share Based Payment Award Options and Warrants Outstanding Intrinsic Value</label>

    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="lab_mdgn_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsAndWarrantsOutstandingIntrinsicValue" xml:lang="en-US">Aggregate intrinsic value, Outstanding</label>

    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="lab_mdgn_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsAndWarrantsOutstandingIntrinsicValue" xml:lang="en-US">Aggregate intrinsic value price, Outstanding</label>

    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="lab_mdgn_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsAndWarrantsOutstandingIntrinsicValue" xml:lang="en-US">Amount of difference between fair value of the underlying options and warrants reserved for issuance and exercise price of options outstanding.</label>

    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_mdgn_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsAndWarrantsOutstandingIntrinsicValue" xlink:to="lab_mdgn_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsAndWarrantsOutstandingIntrinsicValue" />

    <loc xlink:type="locator" xlink:href="mdgn-20140930.xsd#mdgn_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsAndWarrantsVestedAndExpectedToVestOutstandingIntrinsicValue" xlink:label="loc_mdgn_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsAndWarrantsVestedAndExpectedToVestOutstandingIntrinsicValue" />

    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_mdgn_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsAndWarrantsVestedAndExpectedToVestOutstandingIntrinsicValue" xml:lang="en-US">Share Based Compensation Arrangement By Share Based Payment Award Options and Warrants Vested and Expected To Vest Outstanding Intrinsic Value</label>

    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="lab_mdgn_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsAndWarrantsVestedAndExpectedToVestOutstandingIntrinsicValue" xml:lang="en-US">Aggregate intrinsic value, Vested and expected to vest</label>

    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="lab_mdgn_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsAndWarrantsVestedAndExpectedToVestOutstandingIntrinsicValue" xml:lang="en-US">Amount of difference between fair value of the underlying options and warrants reserved for issuance and exercise prices of fully vested and expected to vest options outstanding.</label>

    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_mdgn_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsAndWarrantsVestedAndExpectedToVestOutstandingIntrinsicValue" xlink:to="lab_mdgn_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsAndWarrantsVestedAndExpectedToVestOutstandingIntrinsicValue" />

    <loc xlink:type="locator" xlink:href="mdgn-20140930.xsd#mdgn_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsAndWarrantsExercisableIntrinsicValue" xlink:label="loc_mdgn_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsAndWarrantsExercisableIntrinsicValue" />

    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_mdgn_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsAndWarrantsExercisableIntrinsicValue" xml:lang="en-US">Share Based Compensation Arrangement By Share Based Payment Award Options and Warrants Exercisable Intrinsic Value</label>

    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="lab_mdgn_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsAndWarrantsExercisableIntrinsicValue" xml:lang="en-US">Aggregate intrinsic value, Exercisable</label>

    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="lab_mdgn_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsAndWarrantsExercisableIntrinsicValue" xml:lang="en-US">Aggregate intrinsic value price, Exercisable</label>

    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="lab_mdgn_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsAndWarrantsExercisableIntrinsicValue" xml:lang="en-US">Amount of difference between fair value of the underlying options and warrants reserved for issuance and exercise price of vested portions of options outstanding and currently exercisable.</label>

    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_mdgn_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsAndWarrantsExercisableIntrinsicValue" xlink:to="lab_mdgn_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsAndWarrantsExercisableIntrinsicValue" />

    <loc xlink:type="locator" xlink:href="mdgn-20140930.xsd#mdgn_ConsultantsMember" xlink:label="loc_mdgn_ConsultantsMember" />

    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_mdgn_ConsultantsMember" xml:lang="en-US">Consultants [Member]</label>

    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_mdgn_ConsultantsMember" xlink:to="lab_mdgn_ConsultantsMember" />

    <loc xlink:type="locator" xlink:href="mdgn-20140930.xsd#mdgn_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionSandWarrantsExercisedNumber" xlink:label="loc_mdgn_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionSandWarrantsExercisedNumber" />

    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_mdgn_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionSandWarrantsExercisedNumber" xml:lang="en-US">Share Based Compensation Arrangement By Share Based Payment Award Option sAnd Warrants Exercised Number</label>

    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2009/role/negatedLabel" xlink:label="lab_mdgn_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionSandWarrantsExercisedNumber" xml:lang="en-US">Number of options and warrants, Exercised</label>

    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="lab_mdgn_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionSandWarrantsExercisedNumber" xml:lang="en-US">Number of options and warrants at which exercised\ acquire during the period</label>

    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_mdgn_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionSandWarrantsExercisedNumber" xlink:to="lab_mdgn_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionSandWarrantsExercisedNumber" />

    <loc xlink:type="locator" xlink:href="mdgn-20140930.xsd#mdgn_ShareBasedCompensationArrangementByShareBasedPaymentAwardWarrantAndOptionsExercisedWeightedAverageExercisePrice" xlink:label="loc_mdgn_ShareBasedCompensationArrangementByShareBasedPaymentAwardWarrantAndOptionsExercisedWeightedAverageExercisePrice" />

    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_mdgn_ShareBasedCompensationArrangementByShareBasedPaymentAwardWarrantAndOptionsExercisedWeightedAverageExercisePrice" xml:lang="en-US">Share Based Compensation Arrangement By Share Based Payment Award Warrant And Options Exercised Weighted Average Exercise Price</label>

    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="lab_mdgn_ShareBasedCompensationArrangementByShareBasedPaymentAwardWarrantAndOptionsExercisedWeightedAverageExercisePrice" xml:lang="en-US">Weighted average exercise price, Exercised</label>

    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="lab_mdgn_ShareBasedCompensationArrangementByShareBasedPaymentAwardWarrantAndOptionsExercisedWeightedAverageExercisePrice" xml:lang="en-US">Weighted average price at which exercised can acquire the options and warrants reserved for issuance.</label>

    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_mdgn_ShareBasedCompensationArrangementByShareBasedPaymentAwardWarrantAndOptionsExercisedWeightedAverageExercisePrice" xlink:to="lab_mdgn_ShareBasedCompensationArrangementByShareBasedPaymentAwardWarrantAndOptionsExercisedWeightedAverageExercisePrice" />

    <loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2014/elts/us-gaap-2014-01-31.xsd#us-gaap_EmployeeServiceShareBasedCompensationAllocationOfRecognizedPeriodCostsLineItems" xlink:label="loc_us-gaap_EmployeeServiceShareBasedCompensationAllocationOfRecognizedPeriodCostsLineItems" />

    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_us-gaap_EmployeeServiceShareBasedCompensationAllocationOfRecognizedPeriodCostsLineItems" xml:lang="en-US">Employee Service Share-based Compensation, Allocation of Recognized Period Costs [Line Items]</label>

    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_EmployeeServiceShareBasedCompensationAllocationOfRecognizedPeriodCostsLineItems" xlink:to="lab_us-gaap_EmployeeServiceShareBasedCompensationAllocationOfRecognizedPeriodCostsLineItems" />

    <loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2014/elts/us-gaap-2014-01-31.xsd#us-gaap_AllocatedShareBasedCompensationExpense" xlink:label="loc_us-gaap_AllocatedShareBasedCompensationExpense" />

    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_us-gaap_AllocatedShareBasedCompensationExpense" xml:lang="en-US">Allocated Share-based Compensation Expense</label>

    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="lab_us-gaap_AllocatedShareBasedCompensationExpense" xml:lang="en-US">Share-based Compensation</label>

    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_AllocatedShareBasedCompensationExpense" xlink:to="lab_us-gaap_AllocatedShareBasedCompensationExpense" />

    <loc xlink:type="locator" xlink:href="mdgn-20140930.xsd#mdgn_ExercisePriceOfWarrantAxis" xlink:label="loc_mdgn_ExercisePriceOfWarrantAxis" />

    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_mdgn_ExercisePriceOfWarrantAxis" xml:lang="en-US">Exercise Price Of Warrant [Axis]</label>

    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_mdgn_ExercisePriceOfWarrantAxis" xlink:to="lab_mdgn_ExercisePriceOfWarrantAxis" />

    <loc xlink:type="locator" xlink:href="mdgn-20140930.xsd#mdgn_ExercisePriceOfWarrantDomain" xlink:label="loc_mdgn_ExercisePriceOfWarrantDomain" />

    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_mdgn_ExercisePriceOfWarrantDomain" xml:lang="en-US">Exercise Price Of Warrant [Domain]</label>

    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_mdgn_ExercisePriceOfWarrantDomain" xlink:to="lab_mdgn_ExercisePriceOfWarrantDomain" />

    <loc xlink:type="locator" xlink:href="mdgn-20140930.xsd#mdgn_ExercisePriceOfWarrantTwoPointFortyNineMember" xlink:label="loc_mdgn_ExercisePriceOfWarrantTwoPointFortyNineMember" />

    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_mdgn_ExercisePriceOfWarrantTwoPointFortyNineMember" xml:lang="en-US">Exercise Price Of Warrant Two Point Forty Nine [Member]</label>

    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="lab_mdgn_ExercisePriceOfWarrantTwoPointFortyNineMember" xml:lang="en-US">Exercise Price Of Warrant 2.49 [Member]</label>

    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_mdgn_ExercisePriceOfWarrantTwoPointFortyNineMember" xlink:to="lab_mdgn_ExercisePriceOfWarrantTwoPointFortyNineMember" />

    <loc xlink:type="locator" xlink:href="mdgn-20140930.xsd#mdgn_ExercisePriceOfWarrantFourPointAndNineNineMember" xlink:label="loc_mdgn_ExercisePriceOfWarrantFourPointAndNineNineMember" />

    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_mdgn_ExercisePriceOfWarrantFourPointAndNineNineMember" xml:lang="en-US">Exercise Price Of Warrant Four Point and Nine Nine [Member]</label>

    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="lab_mdgn_ExercisePriceOfWarrantFourPointAndNineNineMember" xml:lang="en-US">Exercise Price Of Warrant 4.99 A [Member]</label>

    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_mdgn_ExercisePriceOfWarrantFourPointAndNineNineMember" xlink:to="lab_mdgn_ExercisePriceOfWarrantFourPointAndNineNineMember" />

    <loc xlink:type="locator" xlink:href="mdgn-20140930.xsd#mdgn_ExercisePriceOfWarrantThreePointOneNineMember" xlink:label="loc_mdgn_ExercisePriceOfWarrantThreePointOneNineMember" />

    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_mdgn_ExercisePriceOfWarrantThreePointOneNineMember" xml:lang="en-US">Exercise Price Of Warrant Three Point One Nine [Member]</label>

    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="lab_mdgn_ExercisePriceOfWarrantThreePointOneNineMember" xml:lang="en-US">Exercise Price Of Warrant 3.19 [Member]</label>

    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_mdgn_ExercisePriceOfWarrantThreePointOneNineMember" xlink:to="lab_mdgn_ExercisePriceOfWarrantThreePointOneNineMember" />

    <loc xlink:type="locator" xlink:href="mdgn-20140930.xsd#mdgn_ExercisePriceOfWarrantFourPointZeroOneMember" xlink:label="loc_mdgn_ExercisePriceOfWarrantFourPointZeroOneMember" />

    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_mdgn_ExercisePriceOfWarrantFourPointZeroOneMember" xml:lang="en-US">Exercise Price Of Warrant Four Point Zero One [Member]</label>

    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="lab_mdgn_ExercisePriceOfWarrantFourPointZeroOneMember" xml:lang="en-US">Exercise Price Of Warrant 4.01 [Member]</label>

    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_mdgn_ExercisePriceOfWarrantFourPointZeroOneMember" xlink:to="lab_mdgn_ExercisePriceOfWarrantFourPointZeroOneMember" />

    <loc xlink:type="locator" xlink:href="mdgn-20140930.xsd#mdgn_ExercisePriceOfWarrantFourPointEightMember" xlink:label="loc_mdgn_ExercisePriceOfWarrantFourPointEightMember" />

    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_mdgn_ExercisePriceOfWarrantFourPointEightMember" xml:lang="en-US">Exercise Price Of Warrant Four Point Eight [Member]</label>

    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="lab_mdgn_ExercisePriceOfWarrantFourPointEightMember" xml:lang="en-US">Exercise Price Of Warrant 4.8 [Member]</label>

    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_mdgn_ExercisePriceOfWarrantFourPointEightMember" xlink:to="lab_mdgn_ExercisePriceOfWarrantFourPointEightMember" />

    <loc xlink:type="locator" xlink:href="mdgn-20140930.xsd#mdgn_ExercisePriceOfWarrantFourPointNineNineMember" xlink:label="loc_mdgn_ExercisePriceOfWarrantFourPointNineNineMember" />

    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_mdgn_ExercisePriceOfWarrantFourPointNineNineMember" xml:lang="en-US">Exercise Price Of Warrant Four Point Nine Nine [Member]</label>

    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="lab_mdgn_ExercisePriceOfWarrantFourPointNineNineMember" xml:lang="en-US">Exercise Price Of Warrant 4.99 [Member]</label>

    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_mdgn_ExercisePriceOfWarrantFourPointNineNineMember" xlink:to="lab_mdgn_ExercisePriceOfWarrantFourPointNineNineMember" />

    <loc xlink:type="locator" xlink:href="mdgn-20140930.xsd#mdgn_ExercisePriceOfWarrantFivePointOneNineMember" xlink:label="loc_mdgn_ExercisePriceOfWarrantFivePointOneNineMember" />

    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_mdgn_ExercisePriceOfWarrantFivePointOneNineMember" xml:lang="en-US">Exercise Price Of Warrant Five Point One Nine [Member]</label>

    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="lab_mdgn_ExercisePriceOfWarrantFivePointOneNineMember" xml:lang="en-US">Exercise Price Of Warrant 5.19 [Member]</label>

    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_mdgn_ExercisePriceOfWarrantFivePointOneNineMember" xlink:to="lab_mdgn_ExercisePriceOfWarrantFivePointOneNineMember" />

    <loc xlink:type="locator" xlink:href="mdgn-20140930.xsd#mdgn_ExercisePriceOfWarrantFivePointThreeTwoMember" xlink:label="loc_mdgn_ExercisePriceOfWarrantFivePointThreeTwoMember" />

    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_mdgn_ExercisePriceOfWarrantFivePointThreeTwoMember" xml:lang="en-US">Exercise Price Of Warrant Five Point Three Two [Member]</label>

    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="lab_mdgn_ExercisePriceOfWarrantFivePointThreeTwoMember" xml:lang="en-US">Exercise Price Of Warrant 5.32 [Member]</label>

    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_mdgn_ExercisePriceOfWarrantFivePointThreeTwoMember" xlink:to="lab_mdgn_ExercisePriceOfWarrantFivePointThreeTwoMember" />

    <loc xlink:type="locator" xlink:href="mdgn-20140930.xsd#mdgn_ExercisePriceOfWarrantFivePointFiveSevenMember" xlink:label="loc_mdgn_ExercisePriceOfWarrantFivePointFiveSevenMember" />

    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_mdgn_ExercisePriceOfWarrantFivePointFiveSevenMember" xml:lang="en-US">Exercise Price Of Warrant Five Point Five Seven [Member]</label>

    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="lab_mdgn_ExercisePriceOfWarrantFivePointFiveSevenMember" xml:lang="en-US">Exercise Price Of Warrant 5.57 [Member]</label>

    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_mdgn_ExercisePriceOfWarrantFivePointFiveSevenMember" xlink:to="lab_mdgn_ExercisePriceOfWarrantFivePointFiveSevenMember" />

    <loc xlink:type="locator" xlink:href="mdgn-20140930.xsd#mdgn_ExercisePriceOfWarrantNinePointOneSevenMember" xlink:label="loc_mdgn_ExercisePriceOfWarrantNinePointOneSevenMember" />

    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_mdgn_ExercisePriceOfWarrantNinePointOneSevenMember" xml:lang="en-US">Exercise Price Of Warrant Nine Point One Seven [Member]</label>

    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="lab_mdgn_ExercisePriceOfWarrantNinePointOneSevenMember" xml:lang="en-US">Exercise Price Of Warrant 9.17 [Member]</label>

    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_mdgn_ExercisePriceOfWarrantNinePointOneSevenMember" xlink:to="lab_mdgn_ExercisePriceOfWarrantNinePointOneSevenMember" />

    <loc xlink:type="locator" xlink:href="mdgn-20140930.xsd#mdgn_ExercisePriceOfWarrantZeroMember" xlink:label="loc_mdgn_ExercisePriceOfWarrantZeroMember" />

    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_mdgn_ExercisePriceOfWarrantZeroMember" xml:lang="en-US">Exercise Price Of Warrant Zero [Member]</label>

    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_mdgn_ExercisePriceOfWarrantZeroMember" xlink:to="lab_mdgn_ExercisePriceOfWarrantZeroMember" />

    <loc xlink:type="locator" xlink:href="mdgn-20140930.xsd#mdgn_ExercisePriceOfWarrantFourPointFiveEightMember" xlink:label="loc_mdgn_ExercisePriceOfWarrantFourPointFiveEightMember" />

    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_mdgn_ExercisePriceOfWarrantFourPointFiveEightMember" xml:lang="en-US">Exercise Price Of Warrant Four Point Five Eight [Member]</label>

    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="lab_mdgn_ExercisePriceOfWarrantFourPointFiveEightMember" xml:lang="en-US">Exercise Price Of Warrant 4.58 [Member]</label>

    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_mdgn_ExercisePriceOfWarrantFourPointFiveEightMember" xlink:to="lab_mdgn_ExercisePriceOfWarrantFourPointFiveEightMember" />

    <loc xlink:type="locator" xlink:href="mdgn-20140930.xsd#mdgn_ExercisePriceOfWarrantSixMember" xlink:label="loc_mdgn_ExercisePriceOfWarrantSixMember" />

    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_mdgn_ExercisePriceOfWarrantSixMember" xml:lang="en-US">Exercise Price Of Warrant Six [Member]</label>

    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="lab_mdgn_ExercisePriceOfWarrantSixMember" xml:lang="en-US">Exercise Price Of Warrant 6 [Member]</label>

    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_mdgn_ExercisePriceOfWarrantSixMember" xlink:to="lab_mdgn_ExercisePriceOfWarrantSixMember" />

    <loc xlink:type="locator" xlink:href="mdgn-20140930.xsd#mdgn_ExercisePriceOfWarrant00002Member" xlink:label="loc_mdgn_ExercisePriceOfWarrant00002Member" />

    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_mdgn_ExercisePriceOfWarrant00002Member" xml:lang="en-US">Exercise Price Of Warrant 00002 [Member]</label>

    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="lab_mdgn_ExercisePriceOfWarrant00002Member" xml:lang="en-US">Exercise Price Of Warrant 0.0002 [Member]</label>

    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_mdgn_ExercisePriceOfWarrant00002Member" xlink:to="lab_mdgn_ExercisePriceOfWarrant00002Member" />

    <loc xlink:type="locator" xlink:href="mdgn-20140930.xsd#mdgn_ExercisePriceOfWarrant539Member" xlink:label="loc_mdgn_ExercisePriceOfWarrant539Member" />

    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_mdgn_ExercisePriceOfWarrant539Member" xml:lang="en-US">Exercise Price Of Warrant 539 [Member]</label>

    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="lab_mdgn_ExercisePriceOfWarrant539Member" xml:lang="en-US">Exercise Price Of Warrant 5.39 [Member]</label>

    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_mdgn_ExercisePriceOfWarrant539Member" xlink:to="lab_mdgn_ExercisePriceOfWarrant539Member" />

    <loc xlink:type="locator" xlink:href="mdgn-20140930.xsd#mdgn_ExercisePriceOfWarrant1116Member" xlink:label="loc_mdgn_ExercisePriceOfWarrant1116Member" />

    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_mdgn_ExercisePriceOfWarrant1116Member" xml:lang="en-US">Exercise Price Of Warrant 1116 [Member]</label>

    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="lab_mdgn_ExercisePriceOfWarrant1116Member" xml:lang="en-US">Exercise Price Of Warrant 11.16 [Member]</label>

    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_mdgn_ExercisePriceOfWarrant1116Member" xlink:to="lab_mdgn_ExercisePriceOfWarrant1116Member" />

    <loc xlink:type="locator" xlink:href="mdgn-20140930.xsd#mdgn_ExercisePriceOfWarrant002Member" xlink:label="loc_mdgn_ExercisePriceOfWarrant002Member" />

    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_mdgn_ExercisePriceOfWarrant002Member" xml:lang="en-US">Exercise Price Of Warrant 002 [Member]</label>

    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="lab_mdgn_ExercisePriceOfWarrant002Member" xml:lang="en-US">Exercise Price Of Warrant 0.02 [Member]</label>

    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_mdgn_ExercisePriceOfWarrant002Member" xlink:to="lab_mdgn_ExercisePriceOfWarrant002Member" />

    <loc xlink:type="locator" xlink:href="mdgn-20140930.xsd#mdgn_ExercisePriceOfWarrant249Member" xlink:label="loc_mdgn_ExercisePriceOfWarrant249Member" />

    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_mdgn_ExercisePriceOfWarrant249Member" xml:lang="en-US">Exercise Price Of Warrant 249 [Member]</label>

    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="lab_mdgn_ExercisePriceOfWarrant249Member" xml:lang="en-US">Exercise Price Of Warrant 2.49 [Member]</label>

    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_mdgn_ExercisePriceOfWarrant249Member" xlink:to="lab_mdgn_ExercisePriceOfWarrant249Member" />

    <loc xlink:type="locator" xlink:href="mdgn-20140930.xsd#mdgn_ExercisePriceOfWarrant48Member" xlink:label="loc_mdgn_ExercisePriceOfWarrant48Member" />

    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_mdgn_ExercisePriceOfWarrant48Member" xml:lang="en-US">Exercise Price Of Warrant 48 [Member]</label>

    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="lab_mdgn_ExercisePriceOfWarrant48Member" xml:lang="en-US">Exercise Price Of Warrant 4.8 [Member]</label>

    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_mdgn_ExercisePriceOfWarrant48Member" xlink:to="lab_mdgn_ExercisePriceOfWarrant48Member" />

    <loc xlink:type="locator" xlink:href="mdgn-20140930.xsd#mdgn_ExercisePriceOfWarrant41Member" xlink:label="loc_mdgn_ExercisePriceOfWarrant41Member" />

    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_mdgn_ExercisePriceOfWarrant41Member" xml:lang="en-US">Exercise Price Of Warrant 41 [Member]</label>

    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="lab_mdgn_ExercisePriceOfWarrant41Member" xml:lang="en-US">Exercise Price Of Warrant 4.1 [Member]</label>

    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_mdgn_ExercisePriceOfWarrant41Member" xlink:to="lab_mdgn_ExercisePriceOfWarrant41Member" />

    <loc xlink:type="locator" xlink:href="mdgn-20140930.xsd#mdgn_ExercisePriceOfWarrant515Member" xlink:label="loc_mdgn_ExercisePriceOfWarrant515Member" />

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    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_mdgn_ExercisePriceOfOptions145Member" xlink:to="lab_mdgn_ExercisePriceOfOptions145Member" />

    <loc xlink:type="locator" xlink:href="mdgn-20140930.xsd#mdgn_ExercisePriceOfOptionsFourPointTwoMember" xlink:label="loc_mdgn_ExercisePriceOfOptionsFourPointTwoMember" />

    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_mdgn_ExercisePriceOfOptionsFourPointTwoMember" xml:lang="en-US">Exercise Price Of Options Four Point Two [Member]</label>

    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="lab_mdgn_ExercisePriceOfOptionsFourPointTwoMember" xml:lang="en-US">Exercise Price Of Options 4.2 [Member]</label>

    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_mdgn_ExercisePriceOfOptionsFourPointTwoMember" xlink:to="lab_mdgn_ExercisePriceOfOptionsFourPointTwoMember" />

    <loc xlink:type="locator" xlink:href="mdgn-20140930.xsd#mdgn_ExercisePriceOfOptions566Member" xlink:label="loc_mdgn_ExercisePriceOfOptions566Member" />

    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_mdgn_ExercisePriceOfOptions566Member" xml:lang="en-US">Exercise Price Of Options 566 [Member]</label>

    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="lab_mdgn_ExercisePriceOfOptions566Member" xml:lang="en-US">Exercise Price Of Options 5.66 [Member]</label>

    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_mdgn_ExercisePriceOfOptions566Member" xlink:to="lab_mdgn_ExercisePriceOfOptions566Member" />

    <loc xlink:type="locator" xlink:href="mdgn-20140930.xsd#mdgn_ExercisePriceOfOptionsSixPointSixFiveMember" xlink:label="loc_mdgn_ExercisePriceOfOptionsSixPointSixFiveMember" />

    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_mdgn_ExercisePriceOfOptionsSixPointSixFiveMember" xml:lang="en-US">Exercise Price Of Options Six Point Six Five [Member]</label>

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    <loc xlink:type="locator" xlink:href="mdgn-20140930.xsd#mdgn_ExercisePriceOfOptions686Member" xlink:label="loc_mdgn_ExercisePriceOfOptions686Member" />

    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_mdgn_ExercisePriceOfOptions686Member" xml:lang="en-US">Exercise Price Of Options 686 [Member]</label>

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    <loc xlink:type="locator" xlink:href="mdgn-20140930.xsd#mdgn_ExercisePriceOfOptionsSevenPointThreeFiveMember" xlink:label="loc_mdgn_ExercisePriceOfOptionsSevenPointThreeFiveMember" />

    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_mdgn_ExercisePriceOfOptionsSevenPointThreeFiveMember" xml:lang="en-US">Exercise Price Of Options Seven Point Three Five [Member]</label>

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    <loc xlink:type="locator" xlink:href="mdgn-20140930.xsd#mdgn_ExercisePriceOfOptions41Member" xlink:label="loc_mdgn_ExercisePriceOfOptions41Member" />

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    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="lab_mdgn_ExercisePriceOfOptions41Member" xml:lang="en-US">Exercise Price Of Options 4.1 [Member]</label>

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    <loc xlink:type="locator" xlink:href="mdgn-20140930.xsd#mdgn_ExercisePriceOfOptions543Member" xlink:label="loc_mdgn_ExercisePriceOfOptions543Member" />

    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_mdgn_ExercisePriceOfOptions543Member" xml:lang="en-US">Exercise Price Of Options 543 [Member]</label>

    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="lab_mdgn_ExercisePriceOfOptions543Member" xml:lang="en-US">Exercise Price Of Options 5.43 [Member]</label>

    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_mdgn_ExercisePriceOfOptions543Member" xlink:to="lab_mdgn_ExercisePriceOfOptions543Member" />

    <loc xlink:type="locator" xlink:href="mdgn-20140930.xsd#mdgn_ExercisePriceOfOptions54Member" xlink:label="loc_mdgn_ExercisePriceOfOptions54Member" />

    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_mdgn_ExercisePriceOfOptions54Member" xml:lang="en-US">Exercise Price Of Options 54 [Member]</label>

    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="lab_mdgn_ExercisePriceOfOptions54Member" xml:lang="en-US">Exercise Price Of Options 5.4 [Member]</label>

    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_mdgn_ExercisePriceOfOptions54Member" xlink:to="lab_mdgn_ExercisePriceOfOptions54Member" />

    <loc xlink:type="locator" xlink:href="mdgn-20140930.xsd#mdgn_ExercisePriceOfOptionsThreePointOneNineMember" xlink:label="loc_mdgn_ExercisePriceOfOptionsThreePointOneNineMember" />

    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_mdgn_ExercisePriceOfOptionsThreePointOneNineMember" xml:lang="en-US">Exercise Price Of Options Three Point One Nine [Member]</label>

    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="lab_mdgn_ExercisePriceOfOptionsThreePointOneNineMember" xml:lang="en-US">Exercise Price Of Options 3.19 [Member]</label>

    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_mdgn_ExercisePriceOfOptionsThreePointOneNineMember" xlink:to="lab_mdgn_ExercisePriceOfOptionsThreePointOneNineMember" />

    <loc xlink:type="locator" xlink:href="mdgn-20140930.xsd#mdgn_ExercisePriceOfOptionsFourPointZeroOneMember" xlink:label="loc_mdgn_ExercisePriceOfOptionsFourPointZeroOneMember" />

    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_mdgn_ExercisePriceOfOptionsFourPointZeroOneMember" xml:lang="en-US">Exercise Price Of Options Four Point Zero One [Member]</label>

    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="lab_mdgn_ExercisePriceOfOptionsFourPointZeroOneMember" xml:lang="en-US">Exercise Price Of Options 4.01 [Member]</label>

    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_mdgn_ExercisePriceOfOptionsFourPointZeroOneMember" xlink:to="lab_mdgn_ExercisePriceOfOptionsFourPointZeroOneMember" />

    <loc xlink:type="locator" xlink:href="mdgn-20140930.xsd#mdgn_ExercisePriceOfOptionsOneOnePointOneSixMember" xlink:label="loc_mdgn_ExercisePriceOfOptionsOneOnePointOneSixMember" />

    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_mdgn_ExercisePriceOfOptionsOneOnePointOneSixMember" xml:lang="en-US">Exercise Price Of Options One One Point One Six [Member]</label>

    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="lab_mdgn_ExercisePriceOfOptionsOneOnePointOneSixMember" xml:lang="en-US">Exercise Price Of Options 11.16 [Member]</label>

    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_mdgn_ExercisePriceOfOptionsOneOnePointOneSixMember" xlink:to="lab_mdgn_ExercisePriceOfOptionsOneOnePointOneSixMember" />

    <loc xlink:type="locator" xlink:href="mdgn-20140930.xsd#mdgn_ExercisePriceAxis" xlink:label="loc_mdgn_ExercisePriceAxis" />

    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_mdgn_ExercisePriceAxis" xml:lang="en-US">Exercise Price [Axis]</label>

    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_mdgn_ExercisePriceAxis" xlink:to="lab_mdgn_ExercisePriceAxis" />

    <loc xlink:type="locator" xlink:href="mdgn-20140930.xsd#mdgn_ExercisePriceDomain" xlink:label="loc_mdgn_ExercisePriceDomain" />

    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_mdgn_ExercisePriceDomain" xml:lang="en-US">Exercise Price [Domain]</label>

    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_mdgn_ExercisePriceDomain" xlink:to="lab_mdgn_ExercisePriceDomain" />

    <loc xlink:type="locator" xlink:href="mdgn-20140930.xsd#mdgn_ExercisePriceOneMember" xlink:label="loc_mdgn_ExercisePriceOneMember" />

    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_mdgn_ExercisePriceOneMember" xml:lang="en-US">Exercise Price One [Member]</label>

    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_mdgn_ExercisePriceOneMember" xlink:to="lab_mdgn_ExercisePriceOneMember" />

    <loc xlink:type="locator" xlink:href="mdgn-20140930.xsd#mdgn_ExercisePriceTwoMember" xlink:label="loc_mdgn_ExercisePriceTwoMember" />

    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_mdgn_ExercisePriceTwoMember" xml:lang="en-US">Exercise Price Two [Member]</label>

    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_mdgn_ExercisePriceTwoMember" xlink:to="lab_mdgn_ExercisePriceTwoMember" />

    <loc xlink:type="locator" xlink:href="mdgn-20140930.xsd#mdgn_ExercisePriceThreeMember" xlink:label="loc_mdgn_ExercisePriceThreeMember" />

    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_mdgn_ExercisePriceThreeMember" xml:lang="en-US">Exercise Price Three [Member]</label>

    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_mdgn_ExercisePriceThreeMember" xlink:to="lab_mdgn_ExercisePriceThreeMember" />

    <loc xlink:type="locator" xlink:href="mdgn-20140930.xsd#mdgn_ExercisePriceFourMember" xlink:label="loc_mdgn_ExercisePriceFourMember" />

    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_mdgn_ExercisePriceFourMember" xml:lang="en-US">Exercise Price Four [Member]</label>

    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_mdgn_ExercisePriceFourMember" xlink:to="lab_mdgn_ExercisePriceFourMember" />

    <loc xlink:type="locator" xlink:href="mdgn-20140930.xsd#mdgn_ExercisePriceFiveMember" xlink:label="loc_mdgn_ExercisePriceFiveMember" />

    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_mdgn_ExercisePriceFiveMember" xml:lang="en-US">Exercise Price Five [Member]</label>

    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_mdgn_ExercisePriceFiveMember" xlink:to="lab_mdgn_ExercisePriceFiveMember" />

    <loc xlink:type="locator" xlink:href="http://xbrl.sec.gov/dei/2014/dei-2014-01-31.xsd#dei_LegalEntityAxis" xlink:label="loc_dei_LegalEntityAxis" />

    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_dei_LegalEntityAxis" xml:lang="en-US">Legal Entity [Axis]</label>

    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_dei_LegalEntityAxis" xlink:to="lab_dei_LegalEntityAxis" />

    <loc xlink:type="locator" xlink:href="http://xbrl.sec.gov/dei/2014/dei-2014-01-31.xsd#dei_EntityDomain" xlink:label="loc_dei_EntityDomain" />

    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_dei_EntityDomain" xml:lang="en-US">Entity [Domain]</label>

    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_dei_EntityDomain" xlink:to="lab_dei_EntityDomain" />

    <loc xlink:type="locator" xlink:href="mdgn-20140930.xsd#mdgn_InvestorsMember" xlink:label="loc_mdgn_InvestorsMember" />

    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_mdgn_InvestorsMember" xml:lang="en-US">Investors [Member]</label>

    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_mdgn_InvestorsMember" xlink:to="lab_mdgn_InvestorsMember" />

    <loc xlink:type="locator" xlink:href="mdgn-20140930.xsd#mdgn_OptionsAndWarrantsMember" xlink:label="loc_mdgn_OptionsAndWarrantsMember" />

    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_mdgn_OptionsAndWarrantsMember" xml:lang="en-US">Options and Warrants [Member]</label>

    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_mdgn_OptionsAndWarrantsMember" xlink:to="lab_mdgn_OptionsAndWarrantsMember" />

    <loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2014/elts/us-gaap-2014-01-31.xsd#us-gaap_MajorTypesOfDebtAndEquitySecuritiesAxis" xlink:label="loc_us-gaap_MajorTypesOfDebtAndEquitySecuritiesAxis" />

    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_us-gaap_MajorTypesOfDebtAndEquitySecuritiesAxis" xml:lang="en-US">Major Types of Debt and Equity Securities [Axis]</label>

    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_MajorTypesOfDebtAndEquitySecuritiesAxis" xlink:to="lab_us-gaap_MajorTypesOfDebtAndEquitySecuritiesAxis" />

    <loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2014/elts/us-gaap-2014-01-31.xsd#us-gaap_MajorTypesOfDebtAndEquitySecuritiesDomain" xlink:label="loc_us-gaap_MajorTypesOfDebtAndEquitySecuritiesDomain" />

    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_us-gaap_MajorTypesOfDebtAndEquitySecuritiesDomain" xml:lang="en-US">Major Types of Debt and Equity Securities [Domain]</label>

    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_MajorTypesOfDebtAndEquitySecuritiesDomain" xlink:to="lab_us-gaap_MajorTypesOfDebtAndEquitySecuritiesDomain" />

    <loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2014/elts/us-gaap-2014-01-31.xsd#us-gaap_StockOptionMember" xlink:label="loc_us-gaap_StockOptionMember" />

    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_us-gaap_StockOptionMember" xml:lang="en-US">Equity Option [Member]</label>

    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="lab_us-gaap_StockOptionMember" xml:lang="en-US">Stock Option [Member]</label>

    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_StockOptionMember" xlink:to="lab_us-gaap_StockOptionMember" />

    <loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2014/elts/us-gaap-2014-01-31.xsd#us-gaap_SharebasedCompensationSharesAuthorizedUnderStockOptionPlansExercisePriceRangeOutstandingOptionsWeightedAverageExercisePriceBeginningBalance1" xlink:label="loc_us-gaap_SharebasedCompensationSharesAuthorizedUnderStockOptionPlansExercisePriceRangeOutstandingOptionsWeightedAverageExercisePriceBeginningBalance1" />

    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_us-gaap_SharebasedCompensationSharesAuthorizedUnderStockOptionPlansExercisePriceRangeOutstandingOptionsWeightedAverageExercisePriceBeginningBalance1" xml:lang="en-US">Share-based Compensation, Shares Authorized under Stock Option Plans, Exercise Price Range, Outstanding Options, Weighted Average Exercise Price</label>

    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="lab_us-gaap_SharebasedCompensationSharesAuthorizedUnderStockOptionPlansExercisePriceRangeOutstandingOptionsWeightedAverageExercisePriceBeginningBalance1" xml:lang="en-US">Issuance Of Common Stock Price Per Common Stock</label>

    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_SharebasedCompensationSharesAuthorizedUnderStockOptionPlansExercisePriceRangeOutstandingOptionsWeightedAverageExercisePriceBeginningBalance1" xlink:to="lab_us-gaap_SharebasedCompensationSharesAuthorizedUnderStockOptionPlansExercisePriceRangeOutstandingOptionsWeightedAverageExercisePriceBeginningBalance1" />

    <loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2014/elts/us-gaap-2014-01-31.xsd#us-gaap_ShareBasedCompensationSharesAuthorizedUnderStockOptionPlansExercisePriceRangeLowerRangeLimit" xlink:label="loc_us-gaap_ShareBasedCompensationSharesAuthorizedUnderStockOptionPlansExercisePriceRangeLowerRangeLimit" />

    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_us-gaap_ShareBasedCompensationSharesAuthorizedUnderStockOptionPlansExercisePriceRangeLowerRangeLimit" xml:lang="en-US">Share-based Compensation, Shares Authorized under Stock Option Plans, Exercise Price Range, Lower Range Limit</label>

    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="lab_us-gaap_ShareBasedCompensationSharesAuthorizedUnderStockOptionPlansExercisePriceRangeLowerRangeLimit" xml:lang="en-US">Minimum Range of Exercise Price per Share ($), Options</label>

    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_ShareBasedCompensationSharesAuthorizedUnderStockOptionPlansExercisePriceRangeLowerRangeLimit" xlink:to="lab_us-gaap_ShareBasedCompensationSharesAuthorizedUnderStockOptionPlansExercisePriceRangeLowerRangeLimit" />

    <loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2014/elts/us-gaap-2014-01-31.xsd#us-gaap_ShareBasedCompensationSharesAuthorizedUnderStockOptionPlansExercisePriceRangeUpperRangeLimit" xlink:label="loc_us-gaap_ShareBasedCompensationSharesAuthorizedUnderStockOptionPlansExercisePriceRangeUpperRangeLimit" />

    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_us-gaap_ShareBasedCompensationSharesAuthorizedUnderStockOptionPlansExercisePriceRangeUpperRangeLimit" xml:lang="en-US">Share-based Compensation, Shares Authorized under Stock Option Plans, Exercise Price Range, Upper Range Limit</label>

    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="lab_us-gaap_ShareBasedCompensationSharesAuthorizedUnderStockOptionPlansExercisePriceRangeUpperRangeLimit" xml:lang="en-US">Maximum Range of Exercise Price per Share ($), Options</label>

    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_ShareBasedCompensationSharesAuthorizedUnderStockOptionPlansExercisePriceRangeUpperRangeLimit" xlink:to="lab_us-gaap_ShareBasedCompensationSharesAuthorizedUnderStockOptionPlansExercisePriceRangeUpperRangeLimit" />

    <loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2014/elts/us-gaap-2014-01-31.xsd#us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingNumber" xlink:label="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingNumber" />

    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingNumber" xml:lang="en-US">Share-Based Compensation Arrangement By Share-Based Payment Award, Options, Outstanding, Number</label>

    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="lab_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingNumber" xml:lang="en-US">Options Outstanding</label>

    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingNumber" xlink:to="lab_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingNumber" />

    <loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2014/elts/us-gaap-2014-01-31.xsd#us-gaap_ShareBasedCompensationSharesAuthorizedUnderStockOptionPlansExercisePriceRangeNumberOfExercisableOptions" xlink:label="loc_us-gaap_ShareBasedCompensationSharesAuthorizedUnderStockOptionPlansExercisePriceRangeNumberOfExercisableOptions" />

    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_us-gaap_ShareBasedCompensationSharesAuthorizedUnderStockOptionPlansExercisePriceRangeNumberOfExercisableOptions" xml:lang="en-US">Share-based Compensation, Shares Authorized under Stock Option Plans, Exercise Price Range, Number of Exercisable Options</label>

    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="lab_us-gaap_ShareBasedCompensationSharesAuthorizedUnderStockOptionPlansExercisePriceRangeNumberOfExercisableOptions" xml:lang="en-US">Options Exercisable</label>

    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_ShareBasedCompensationSharesAuthorizedUnderStockOptionPlansExercisePriceRangeNumberOfExercisableOptions" xlink:to="lab_us-gaap_ShareBasedCompensationSharesAuthorizedUnderStockOptionPlansExercisePriceRangeNumberOfExercisableOptions" />

    <loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2014/elts/us-gaap-2014-01-31.xsd#us-gaap_SharebasedCompensationSharesAuthorizedUnderStockOptionPlansExercisePriceRangeOutstandingOptionsWeightedAverageRemainingContractualTerm2" xlink:label="loc_us-gaap_SharebasedCompensationSharesAuthorizedUnderStockOptionPlansExercisePriceRangeOutstandingOptionsWeightedAverageRemainingContractualTerm2" />

    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_us-gaap_SharebasedCompensationSharesAuthorizedUnderStockOptionPlansExercisePriceRangeOutstandingOptionsWeightedAverageRemainingContractualTerm2" xml:lang="en-US">Share-based Compensation, Shares Authorized under Stock Option Plans, Exercise Price Range, Outstanding Options, Weighted Average Remaining Contractual Term</label>

    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="lab_us-gaap_SharebasedCompensationSharesAuthorizedUnderStockOptionPlansExercisePriceRangeOutstandingOptionsWeightedAverageRemainingContractualTerm2" xml:lang="en-US">Weighted Average Remaining Contractual Terms (in years), Options</label>

    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_SharebasedCompensationSharesAuthorizedUnderStockOptionPlansExercisePriceRangeOutstandingOptionsWeightedAverageRemainingContractualTerm2" xlink:to="lab_us-gaap_SharebasedCompensationSharesAuthorizedUnderStockOptionPlansExercisePriceRangeOutstandingOptionsWeightedAverageRemainingContractualTerm2" />

    <loc xlink:type="locator" xlink:href="mdgn-20140930.xsd#mdgn_WarrantsExercisePricePerShare" xlink:label="loc_mdgn_WarrantsExercisePricePerShare" />

    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_mdgn_WarrantsExercisePricePerShare" xml:lang="en-US">Warrants Exercise Price Per Share</label>

    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="lab_mdgn_WarrantsExercisePricePerShare" xml:lang="en-US">Exercise Price per Share ($), Warrants</label>

    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="lab_mdgn_WarrantsExercisePricePerShare" xml:lang="en-US">Exercise price per share or per unit of warrants.</label>

    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_mdgn_WarrantsExercisePricePerShare" xlink:to="lab_mdgn_WarrantsExercisePricePerShare" />

    <loc xlink:type="locator" xlink:href="mdgn-20140930.xsd#mdgn_ShareBasedCompensationArrangementByShareBasedPaymentAwardWarrantsOutstandingNumber" xlink:label="loc_mdgn_ShareBasedCompensationArrangementByShareBasedPaymentAwardWarrantsOutstandingNumber" />

    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_mdgn_ShareBasedCompensationArrangementByShareBasedPaymentAwardWarrantsOutstandingNumber" xml:lang="en-US">Share Based Compensation Arrangement By Share Based Payment Award Warrants Outstanding Number</label>

    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="lab_mdgn_ShareBasedCompensationArrangementByShareBasedPaymentAwardWarrantsOutstandingNumber" xml:lang="en-US">Warrants Outstanding</label>

    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="lab_mdgn_ShareBasedCompensationArrangementByShareBasedPaymentAwardWarrantsOutstandingNumber" xml:lang="en-US">The number of warrants granted but not yet exercised.</label>

    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_mdgn_ShareBasedCompensationArrangementByShareBasedPaymentAwardWarrantsOutstandingNumber" xlink:to="lab_mdgn_ShareBasedCompensationArrangementByShareBasedPaymentAwardWarrantsOutstandingNumber" />

    <loc xlink:type="locator" xlink:href="mdgn-20140930.xsd#mdgn_ShareBasedCompensationArrangementByShareBasedPaymentAwardWarrantsExercisableNumber" xlink:label="loc_mdgn_ShareBasedCompensationArrangementByShareBasedPaymentAwardWarrantsExercisableNumber" />

    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_mdgn_ShareBasedCompensationArrangementByShareBasedPaymentAwardWarrantsExercisableNumber" xml:lang="en-US">Share Based Compensation Arrangement By Share Based Payment Award Warrants Exercisable Number</label>

    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="lab_mdgn_ShareBasedCompensationArrangementByShareBasedPaymentAwardWarrantsExercisableNumber" xml:lang="en-US">Warrants Exercisable</label>

    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="lab_mdgn_ShareBasedCompensationArrangementByShareBasedPaymentAwardWarrantsExercisableNumber" xml:lang="en-US">The number of options and warrants into which fully or partially vested stock options and warrants outstanding as of the balance sheet date can be currently converted.</label>

    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_mdgn_ShareBasedCompensationArrangementByShareBasedPaymentAwardWarrantsExercisableNumber" xlink:to="lab_mdgn_ShareBasedCompensationArrangementByShareBasedPaymentAwardWarrantsExercisableNumber" />

    <loc xlink:type="locator" xlink:href="mdgn-20140930.xsd#mdgn_ShareBasedCompensationArrangementByShareBasedPaymentAwardWarrantsExercisableWeightedAverageRemainingContractualTerm" xlink:label="loc_mdgn_ShareBasedCompensationArrangementByShareBasedPaymentAwardWarrantsExercisableWeightedAverageRemainingContractualTerm" />

    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_mdgn_ShareBasedCompensationArrangementByShareBasedPaymentAwardWarrantsExercisableWeightedAverageRemainingContractualTerm" xml:lang="en-US">Share Based Compensation Arrangement By Share Based Payment Award Warrants Exercisable Weighted Average Remaining Contractual Term</label>

    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="lab_mdgn_ShareBasedCompensationArrangementByShareBasedPaymentAwardWarrantsExercisableWeightedAverageRemainingContractualTerm" xml:lang="en-US">Weighted Average Remaining Contractual Terms (in years), Warrants</label>

    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="lab_mdgn_ShareBasedCompensationArrangementByShareBasedPaymentAwardWarrantsExercisableWeightedAverageRemainingContractualTerm" xml:lang="en-US">Weighted average remaining contractual term for warrants awards outstanding, in &#39;PnYnMnDTnHnMnS&#39; format, for example, &#39;P1Y5M13D&#39; represents the reported fact of one year, five months, and thirteen days.</label>

    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_mdgn_ShareBasedCompensationArrangementByShareBasedPaymentAwardWarrantsExercisableWeightedAverageRemainingContractualTerm" xlink:to="lab_mdgn_ShareBasedCompensationArrangementByShareBasedPaymentAwardWarrantsExercisableWeightedAverageRemainingContractualTerm" />

    <loc xlink:type="locator" xlink:href="mdgn-20140930.xsd#mdgn_TotalOptionsAndWarrantsOutstanding" xlink:label="loc_mdgn_TotalOptionsAndWarrantsOutstanding" />

    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_mdgn_TotalOptionsAndWarrantsOutstanding" xml:lang="en-US">Total Options And Warrants Outstanding</label>

    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="lab_mdgn_TotalOptionsAndWarrantsOutstanding" xml:lang="en-US">The number of warrants granted and outstanding.</label>

    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_mdgn_TotalOptionsAndWarrantsOutstanding" xlink:to="lab_mdgn_TotalOptionsAndWarrantsOutstanding" />

    <loc xlink:type="locator" xlink:href="mdgn-20140930.xsd#mdgn_OptionsAndWarrantsExercisable" xlink:label="loc_mdgn_OptionsAndWarrantsExercisable" />

    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_mdgn_OptionsAndWarrantsExercisable" xml:lang="en-US">Options And Warrants Exercisable</label>

    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="lab_mdgn_OptionsAndWarrantsExercisable" xml:lang="en-US">Total Options and Warrants Exercisable</label>

    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="lab_mdgn_OptionsAndWarrantsExercisable" xml:lang="en-US">The number of options and warrants into which fully or partially vested stock options and warrants outstanding as of the balance sheet date can be currently converted.</label>

    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_mdgn_OptionsAndWarrantsExercisable" xlink:to="lab_mdgn_OptionsAndWarrantsExercisable" />

    <loc xlink:type="locator" xlink:href="mdgn-20140930.xsd#mdgn_NonExecutiveDirectorsMember" xlink:label="loc_mdgn_NonExecutiveDirectorsMember" />

    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_mdgn_NonExecutiveDirectorsMember" xml:lang="en-US">Non Executive Directors [Member]</label>

    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_mdgn_NonExecutiveDirectorsMember" xlink:to="lab_mdgn_NonExecutiveDirectorsMember" />

    <loc xlink:type="locator" xlink:href="mdgn-20140930.xsd#mdgn_ExecutiveChairmanMember" xlink:label="loc_mdgn_ExecutiveChairmanMember" />

    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_mdgn_ExecutiveChairmanMember" xml:lang="en-US">Executive Chairman [Member]</label>

    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_mdgn_ExecutiveChairmanMember" xlink:to="lab_mdgn_ExecutiveChairmanMember" />

    <loc xlink:type="locator" xlink:href="mdgn-20140930.xsd#mdgn_ConsultantMember" xlink:label="loc_mdgn_ConsultantMember" />

    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_mdgn_ConsultantMember" xml:lang="en-US">Consultant [Member]</label>

    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_mdgn_ConsultantMember" xlink:to="lab_mdgn_ConsultantMember" />

    <loc xlink:type="locator" xlink:href="mdgn-20140930.xsd#mdgn_RestrictedStockUnitsRsu2Member" xlink:label="loc_mdgn_RestrictedStockUnitsRsu2Member" />

    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_mdgn_RestrictedStockUnitsRsu2Member" xml:lang="en-US">Restricted Stock Units Rsu2 [Member]</label>

    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_mdgn_RestrictedStockUnitsRsu2Member" xlink:to="lab_mdgn_RestrictedStockUnitsRsu2Member" />

    <loc xlink:type="locator" xlink:href="mdgn-20140930.xsd#mdgn_RestrictedStockUnitsRsuFinalMember" xlink:label="loc_mdgn_RestrictedStockUnitsRsuFinalMember" />

    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_mdgn_RestrictedStockUnitsRsuFinalMember" xml:lang="en-US">Restricted Stock Units Rsu Final [Member]</label>

    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_mdgn_RestrictedStockUnitsRsuFinalMember" xlink:to="lab_mdgn_RestrictedStockUnitsRsuFinalMember" />

    <loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2014/elts/us-gaap-2014-01-31.xsd#us-gaap_StockCompensationPlanMember" xlink:label="loc_us-gaap_StockCompensationPlanMember" />

    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_us-gaap_StockCompensationPlanMember" xml:lang="en-US">Stock Compensation Plan [Member]</label>

    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="lab_us-gaap_StockCompensationPlanMember" xml:lang="en-US">Stock Incentive Plan [Member]</label>

    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_StockCompensationPlanMember" xlink:to="lab_us-gaap_StockCompensationPlanMember" />

    <loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2014/elts/us-gaap-2014-01-31.xsd#us-gaap_CommonStockMember" xlink:label="loc_us-gaap_CommonStockMember" />

    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_us-gaap_CommonStockMember" xml:lang="en-US">Common Stock [Member]</label>

    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_CommonStockMember" xlink:to="lab_us-gaap_CommonStockMember" />

    <loc xlink:type="locator" xlink:href="mdgn-20140930.xsd#mdgn_SeriesTwoThousandAndThirteenWarrrantsMember" xlink:label="loc_mdgn_SeriesTwoThousandAndThirteenWarrrantsMember" />

    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_mdgn_SeriesTwoThousandAndThirteenWarrrantsMember" xml:lang="en-US">Series Two Thousand And Thirteen Warrrants [Member]</label>

    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="lab_mdgn_SeriesTwoThousandAndThirteenWarrrantsMember" xml:lang="en-US">Series 2013 Warrants [Member]</label>

    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_mdgn_SeriesTwoThousandAndThirteenWarrrantsMember" xlink:to="lab_mdgn_SeriesTwoThousandAndThirteenWarrrantsMember" />

    <loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2014/elts/us-gaap-2014-01-31.xsd#us-gaap_AdditionalPaidInCapitalMember" xlink:label="loc_us-gaap_AdditionalPaidInCapitalMember" />

    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_us-gaap_AdditionalPaidInCapitalMember" xml:lang="en-US">Additional Paid-in Capital [Member]</label>

    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_AdditionalPaidInCapitalMember" xlink:to="lab_us-gaap_AdditionalPaidInCapitalMember" />

    <loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2014/elts/us-gaap-2014-01-31.xsd#us-gaap_AccumulatedDeficitDuringDevelopmentStageMember" xlink:label="loc_us-gaap_AccumulatedDeficitDuringDevelopmentStageMember" />

    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_us-gaap_AccumulatedDeficitDuringDevelopmentStageMember" xml:lang="en-US">Accumulated Deficit during Development Stage [Member]</label>

    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="lab_us-gaap_AccumulatedDeficitDuringDevelopmentStageMember" xml:lang="en-US">Accumulated deficit [Member]</label>

    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_AccumulatedDeficitDuringDevelopmentStageMember" xlink:to="lab_us-gaap_AccumulatedDeficitDuringDevelopmentStageMember" />

    <loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2014/elts/us-gaap-2014-01-31.xsd#us-gaap_SubsidiarySaleOfStockAxis" xlink:label="loc_us-gaap_SubsidiarySaleOfStockAxis" />

    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_us-gaap_SubsidiarySaleOfStockAxis" xml:lang="en-US">Subsidiary, Sale of Stock [Axis]</label>

    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_SubsidiarySaleOfStockAxis" xlink:to="lab_us-gaap_SubsidiarySaleOfStockAxis" />

    <loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2014/elts/us-gaap-2014-01-31.xsd#us-gaap_SaleOfStockNameOfTransactionDomain" xlink:label="loc_us-gaap_SaleOfStockNameOfTransactionDomain" />

    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_us-gaap_SaleOfStockNameOfTransactionDomain" xml:lang="en-US">Sale of Stock, Name of Transaction [Domain]</label>

    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_SaleOfStockNameOfTransactionDomain" xlink:to="lab_us-gaap_SaleOfStockNameOfTransactionDomain" />

    <loc xlink:type="locator" xlink:href="mdgn-20140930.xsd#mdgn_UnderwritersOverAllotmentOptionMember" xlink:label="loc_mdgn_UnderwritersOverAllotmentOptionMember" />

    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_mdgn_UnderwritersOverAllotmentOptionMember" xml:lang="en-US">Underwriters Over Allotment Option [Member]</label>

    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="lab_mdgn_UnderwritersOverAllotmentOptionMember" xml:lang="en-US">Underwriter&#39;s Over Allotment Option [Member]</label>

    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_mdgn_UnderwritersOverAllotmentOptionMember" xlink:to="lab_mdgn_UnderwritersOverAllotmentOptionMember" />

    <loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2014/elts/us-gaap-2014-01-31.xsd#us-gaap_PrivatePlacementMember" xlink:label="loc_us-gaap_PrivatePlacementMember" />

    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_us-gaap_PrivatePlacementMember" xml:lang="en-US">Private Placement [Member]</label>

    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_PrivatePlacementMember" xlink:to="lab_us-gaap_PrivatePlacementMember" />

    <loc xlink:type="locator" xlink:href="mdgn-20140930.xsd#mdgn_PublicOfferingMember" xlink:label="loc_mdgn_PublicOfferingMember" />

    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_mdgn_PublicOfferingMember" xml:lang="en-US">Public Offering [Member]</label>

    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_mdgn_PublicOfferingMember" xlink:to="lab_mdgn_PublicOfferingMember" />

    <loc xlink:type="locator" xlink:href="mdgn-20140930.xsd#mdgn_PlacementAgentMember" xlink:label="loc_mdgn_PlacementAgentMember" />

    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_mdgn_PlacementAgentMember" xml:lang="en-US">Placement Agent [Member]</label>

    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_mdgn_PlacementAgentMember" xlink:to="lab_mdgn_PlacementAgentMember" />

    <loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2014/elts/us-gaap-2014-01-31.xsd#us-gaap_IPOMember" xlink:label="loc_us-gaap_IPOMember" />

    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_us-gaap_IPOMember" xml:lang="en-US">IPO [Member]</label>

    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_IPOMember" xlink:to="lab_us-gaap_IPOMember" />

    <loc xlink:type="locator" xlink:href="mdgn-20140930.xsd#mdgn_WarrantsToPurchaseSharesOfCommonStock" xlink:label="loc_mdgn_WarrantsToPurchaseSharesOfCommonStock" />

    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_mdgn_WarrantsToPurchaseSharesOfCommonStock" xml:lang="en-US">Warrants To Purchase Shares Of Common Stock</label>

    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="lab_mdgn_WarrantsToPurchaseSharesOfCommonStock" xml:lang="en-US">Warrants issued to purchase shares of Common stock.</label>

    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_mdgn_WarrantsToPurchaseSharesOfCommonStock" xlink:to="lab_mdgn_WarrantsToPurchaseSharesOfCommonStock" />

    <loc xlink:type="locator" xlink:href="mdgn-20140930.xsd#mdgn_CommonStockClosingSharePrice" xlink:label="loc_mdgn_CommonStockClosingSharePrice" />

    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_mdgn_CommonStockClosingSharePrice" xml:lang="en-US">Common Stock Closing Share Price</label>

    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="lab_mdgn_CommonStockClosingSharePrice" xml:lang="en-US">The closing share price of the Company&#39;s Common stock at the end of the period.</label>

    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_mdgn_CommonStockClosingSharePrice" xlink:to="lab_mdgn_CommonStockClosingSharePrice" />

    <loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2014/elts/us-gaap-2014-01-31.xsd#us-gaap_EmployeeServiceShareBasedCompensationNonvestedAwardsTotalCompensationCostNotYetRecognizedStockOptions" xlink:label="loc_us-gaap_EmployeeServiceShareBasedCompensationNonvestedAwardsTotalCompensationCostNotYetRecognizedStockOptions" />

    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_us-gaap_EmployeeServiceShareBasedCompensationNonvestedAwardsTotalCompensationCostNotYetRecognizedStockOptions" xml:lang="en-US">Employee Service Share-based Compensation, Nonvested Awards, Compensation Not yet Recognized, Stock Options</label>

    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_EmployeeServiceShareBasedCompensationNonvestedAwardsTotalCompensationCostNotYetRecognizedStockOptions" xlink:to="lab_us-gaap_EmployeeServiceShareBasedCompensationNonvestedAwardsTotalCompensationCostNotYetRecognizedStockOptions" />

    <loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2014/elts/us-gaap-2014-01-31.xsd#us-gaap_EmployeeServiceShareBasedCompensationNonvestedAwardsTotalCompensationCostNotYetRecognizedPeriodForRecognition1" xlink:label="loc_us-gaap_EmployeeServiceShareBasedCompensationNonvestedAwardsTotalCompensationCostNotYetRecognizedPeriodForRecognition1" />

    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_us-gaap_EmployeeServiceShareBasedCompensationNonvestedAwardsTotalCompensationCostNotYetRecognizedPeriodForRecognition1" xml:lang="en-US">Employee Service Share-based Compensation, Nonvested Awards, Compensation Cost Not yet Recognized, Period for Recognition</label>

    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_EmployeeServiceShareBasedCompensationNonvestedAwardsTotalCompensationCostNotYetRecognizedPeriodForRecognition1" xlink:to="lab_us-gaap_EmployeeServiceShareBasedCompensationNonvestedAwardsTotalCompensationCostNotYetRecognizedPeriodForRecognition1" />

    <loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2014/elts/us-gaap-2014-01-31.xsd#us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardNumberOfAdditionalSharesAuthorized" xlink:label="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardNumberOfAdditionalSharesAuthorized" />

    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardNumberOfAdditionalSharesAuthorized" xml:lang="en-US">Share-based Compensation Arrangement by Share-based Payment Award, Number of Additional Shares Authorized</label>

    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardNumberOfAdditionalSharesAuthorized" xlink:to="lab_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardNumberOfAdditionalSharesAuthorized" />

    <loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2014/elts/us-gaap-2014-01-31.xsd#us-gaap_AccountingPoliciesAbstract" xlink:label="loc_us-gaap_AccountingPoliciesAbstract" />

    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_us-gaap_AccountingPoliciesAbstract" xml:lang="en-US">Accounting Policies [Abstract]</label>

    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_AccountingPoliciesAbstract" xlink:to="lab_us-gaap_AccountingPoliciesAbstract" />

    <loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2014/elts/us-gaap-2014-01-31.xsd#us-gaap_FairValueAssetsAndLiabilitiesMeasuredOnRecurringAndNonrecurringBasisValuationTechniquesTable" xlink:label="loc_us-gaap_FairValueAssetsAndLiabilitiesMeasuredOnRecurringAndNonrecurringBasisValuationTechniquesTable" />

    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_us-gaap_FairValueAssetsAndLiabilitiesMeasuredOnRecurringAndNonrecurringBasisValuationTechniquesTable" xml:lang="en-US">Fair Value Measurements, Recurring and Nonrecurring, Valuation Techniques [Table]</label>

    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_FairValueAssetsAndLiabilitiesMeasuredOnRecurringAndNonrecurringBasisValuationTechniquesTable" xlink:to="lab_us-gaap_FairValueAssetsAndLiabilitiesMeasuredOnRecurringAndNonrecurringBasisValuationTechniquesTable" />

    <loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2014/elts/us-gaap-2014-01-31.xsd#us-gaap_FairValueAssetsAndLiabilitiesMeasuredOnRecurringAndNonrecurringBasisValuationTechniquesLineItems" xlink:label="loc_us-gaap_FairValueAssetsAndLiabilitiesMeasuredOnRecurringAndNonrecurringBasisValuationTechniquesLineItems" />

    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_us-gaap_FairValueAssetsAndLiabilitiesMeasuredOnRecurringAndNonrecurringBasisValuationTechniquesLineItems" xml:lang="en-US">Fair Value Measurements, Recurring and Nonrecurring, Valuation Techniques [Line Items]</label>

    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_FairValueAssetsAndLiabilitiesMeasuredOnRecurringAndNonrecurringBasisValuationTechniquesLineItems" xlink:to="lab_us-gaap_FairValueAssetsAndLiabilitiesMeasuredOnRecurringAndNonrecurringBasisValuationTechniquesLineItems" />

    <loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2014/elts/us-gaap-2014-01-31.xsd#us-gaap_FairValueAssumptionsExpectedDividendRate" xlink:label="loc_us-gaap_FairValueAssumptionsExpectedDividendRate" />

    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_us-gaap_FairValueAssumptionsExpectedDividendRate" xml:lang="en-US">Fair Value Assumptions, Expected Dividend Rate</label>

    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="lab_us-gaap_FairValueAssumptionsExpectedDividendRate" xml:lang="en-US">Dividend yield</label>

    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_FairValueAssumptionsExpectedDividendRate" xlink:to="lab_us-gaap_FairValueAssumptionsExpectedDividendRate" />

    <loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2014/elts/us-gaap-2014-01-31.xsd#us-gaap_FairValueAssumptionsExpectedVolatilityRate" xlink:label="loc_us-gaap_FairValueAssumptionsExpectedVolatilityRate" />

    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_us-gaap_FairValueAssumptionsExpectedVolatilityRate" xml:lang="en-US">Fair Value Assumptions, Expected Volatility Rate</label>

    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="lab_us-gaap_FairValueAssumptionsExpectedVolatilityRate" xml:lang="en-US">Expected volatility</label>

    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_FairValueAssumptionsExpectedVolatilityRate" xlink:to="lab_us-gaap_FairValueAssumptionsExpectedVolatilityRate" />

    <loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2014/elts/us-gaap-2014-01-31.xsd#us-gaap_FairValueAssumptionsRiskFreeInterestRate" xlink:label="loc_us-gaap_FairValueAssumptionsRiskFreeInterestRate" />

    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_us-gaap_FairValueAssumptionsRiskFreeInterestRate" xml:lang="en-US">Fair Value Assumptions, Risk Free Interest Rate</label>

    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="lab_us-gaap_FairValueAssumptionsRiskFreeInterestRate" xml:lang="en-US">Risk-free interest rate</label>

    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_FairValueAssumptionsRiskFreeInterestRate" xlink:to="lab_us-gaap_FairValueAssumptionsRiskFreeInterestRate" />

    <loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2014/elts/us-gaap-2014-01-31.xsd#us-gaap_FairValueAssumptionsExpectedTerm" xlink:label="loc_us-gaap_FairValueAssumptionsExpectedTerm" />

    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_us-gaap_FairValueAssumptionsExpectedTerm" xml:lang="en-US">Fair Value Assumptions, Expected Term</label>

    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="lab_us-gaap_FairValueAssumptionsExpectedTerm" xml:lang="en-US">Contractual life (in years)</label>

    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_FairValueAssumptionsExpectedTerm" xlink:to="lab_us-gaap_FairValueAssumptionsExpectedTerm" />

    <loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2014/elts/us-gaap-2014-01-31.xsd#us-gaap_FairValueByFairValueHierarchyLevelAxis" xlink:label="loc_us-gaap_FairValueByFairValueHierarchyLevelAxis" />

    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_us-gaap_FairValueByFairValueHierarchyLevelAxis" xml:lang="en-US">Fair Value, Hierarchy [Axis]</label>

    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_FairValueByFairValueHierarchyLevelAxis" xlink:to="lab_us-gaap_FairValueByFairValueHierarchyLevelAxis" />

    <loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2014/elts/us-gaap-2014-01-31.xsd#us-gaap_FairValueMeasurementsFairValueHierarchyDomain" xlink:label="loc_us-gaap_FairValueMeasurementsFairValueHierarchyDomain" />

    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_us-gaap_FairValueMeasurementsFairValueHierarchyDomain" xml:lang="en-US">Fair Value Hierarchy [Domain]</label>

    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_FairValueMeasurementsFairValueHierarchyDomain" xlink:to="lab_us-gaap_FairValueMeasurementsFairValueHierarchyDomain" />

    <loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2014/elts/us-gaap-2014-01-31.xsd#us-gaap_FairValueInputsLevel3Member" xlink:label="loc_us-gaap_FairValueInputsLevel3Member" />

    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_us-gaap_FairValueInputsLevel3Member" xml:lang="en-US">Fair Value, Inputs, Level 3 [Member]</label>

    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_FairValueInputsLevel3Member" xlink:to="lab_us-gaap_FairValueInputsLevel3Member" />

    <loc xlink:type="locator" xlink:href="mdgn-20140930.xsd#mdgn_FairValueOfClassOfWarrantOrRightLiability" xlink:label="loc_mdgn_FairValueOfClassOfWarrantOrRightLiability" />

    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_mdgn_FairValueOfClassOfWarrantOrRightLiability" xml:lang="en-US">Fair Value Of Class Of Warrant Or Right Liability</label>

    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/periodStartLabel" xlink:label="lab_mdgn_FairValueOfClassOfWarrantOrRightLiability" xml:lang="en-US">Balance, Opening</label>

    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/periodEndLabel" xlink:label="lab_mdgn_FairValueOfClassOfWarrantOrRightLiability" xml:lang="en-US">Balance, Ending</label>

    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="lab_mdgn_FairValueOfClassOfWarrantOrRightLiability" xml:lang="en-US">Fair value of class of warrant or right as on the balance sheet date.</label>

    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_mdgn_FairValueOfClassOfWarrantOrRightLiability" xlink:to="lab_mdgn_FairValueOfClassOfWarrantOrRightLiability" />

    <loc xlink:type="locator" xlink:href="mdgn-20140930.xsd#mdgn_ClassOfWarrantOrRightLiabilityAtEquityDueExerciseOfWarrantsPeriodIncreaseDecrease" xlink:label="loc_mdgn_ClassOfWarrantOrRightLiabilityAtEquityDueExerciseOfWarrantsPeriodIncreaseDecrease" />

    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_mdgn_ClassOfWarrantOrRightLiabilityAtEquityDueExerciseOfWarrantsPeriodIncreaseDecrease" xml:lang="en-US">Class Of Warrant Or Right Liability At Equity Due Exercise Of Warrants Period Increase Decrease</label>

    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="lab_mdgn_ClassOfWarrantOrRightLiabilityAtEquityDueExerciseOfWarrantsPeriodIncreaseDecrease" xml:lang="en-US">Change due to exercise of warrants</label>

    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="lab_mdgn_ClassOfWarrantOrRightLiabilityAtEquityDueExerciseOfWarrantsPeriodIncreaseDecrease" xml:lang="en-US">Increase (Decrease) in exercise of each class of warrants or right during the period.</label>

    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_mdgn_ClassOfWarrantOrRightLiabilityAtEquityDueExerciseOfWarrantsPeriodIncreaseDecrease" xlink:to="lab_mdgn_ClassOfWarrantOrRightLiabilityAtEquityDueExerciseOfWarrantsPeriodIncreaseDecrease" />

    <loc xlink:type="locator" xlink:href="mdgn-20140930.xsd#mdgn_ClassOfWarrantOrRightLiabilityAtFairValuePeriodIncreaseDecrease" xlink:label="loc_mdgn_ClassOfWarrantOrRightLiabilityAtFairValuePeriodIncreaseDecrease" />

    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_mdgn_ClassOfWarrantOrRightLiabilityAtFairValuePeriodIncreaseDecrease" xml:lang="en-US">Class Of Warrant Or Right Liability At Fair Value Period Increase Decrease</label>

    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="lab_mdgn_ClassOfWarrantOrRightLiabilityAtFairValuePeriodIncreaseDecrease" xml:lang="en-US">Change in the liability in respect of warrants</label>

    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="lab_mdgn_ClassOfWarrantOrRightLiabilityAtFairValuePeriodIncreaseDecrease" xml:lang="en-US">Increase (Decrease) in fair value of each class of warrants or right during the period.</label>

    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_mdgn_ClassOfWarrantOrRightLiabilityAtFairValuePeriodIncreaseDecrease" xlink:to="lab_mdgn_ClassOfWarrantOrRightLiabilityAtFairValuePeriodIncreaseDecrease" />

    <loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2014/elts/us-gaap-2014-01-31.xsd#us-gaap_ScheduleOfEarningsPerShareBasicByCommonClassTable" xlink:label="loc_us-gaap_ScheduleOfEarningsPerShareBasicByCommonClassTable" />

    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_us-gaap_ScheduleOfEarningsPerShareBasicByCommonClassTable" xml:lang="en-US">Schedule of Earnings Per Share, Basic, by Common Class, Including Two Class Method [Table]</label>

    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_ScheduleOfEarningsPerShareBasicByCommonClassTable" xlink:to="lab_us-gaap_ScheduleOfEarningsPerShareBasicByCommonClassTable" />

    <loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2014/elts/us-gaap-2014-01-31.xsd#us-gaap_EarningsPerShareBasicLineItems" xlink:label="loc_us-gaap_EarningsPerShareBasicLineItems" />

    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_us-gaap_EarningsPerShareBasicLineItems" xml:lang="en-US">Earnings Per Share, Basic, by Common Class, Including Two Class Method [Line Items]</label>

    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_EarningsPerShareBasicLineItems" xlink:to="lab_us-gaap_EarningsPerShareBasicLineItems" />

    <loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2014/elts/us-gaap-2014-01-31.xsd#us-gaap_WeightedAverageNumberOfSharesOutstandingBasic" xlink:label="loc_us-gaap_WeightedAverageNumberOfSharesOutstandingBasic" />

    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_us-gaap_WeightedAverageNumberOfSharesOutstandingBasic" xml:lang="en-US">Weighted Average Number Of Shares Outstanding, Basic</label>

    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="lab_us-gaap_WeightedAverageNumberOfSharesOutstandingBasic" xml:lang="en-US">Weighted average numberof shares, For the computation of basic loss (in shares)</label>

    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="lab_us-gaap_WeightedAverageNumberOfSharesOutstandingBasic" xml:lang="en-US">Weighted average number of Common stock used in computing basic loss per share (in shares)</label>

    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_WeightedAverageNumberOfSharesOutstandingBasic" xlink:to="lab_us-gaap_WeightedAverageNumberOfSharesOutstandingBasic" />

    <loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2014/elts/us-gaap-2014-01-31.xsd#us-gaap_IncrementalCommonSharesAttributableToCallOptionsAndWarrants" xlink:label="loc_us-gaap_IncrementalCommonSharesAttributableToCallOptionsAndWarrants" />

    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_us-gaap_IncrementalCommonSharesAttributableToCallOptionsAndWarrants" xml:lang="en-US">Incremental Common Shares Attributable to Dilutive Effect of Call Options and Warrants</label>

    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="lab_us-gaap_IncrementalCommonSharesAttributableToCallOptionsAndWarrants" xml:lang="en-US">Weighted average number of shares, Effect of potential dilutive common shares issuable upon exercise of warrants classified as liability (in shares)</label>

    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_IncrementalCommonSharesAttributableToCallOptionsAndWarrants" xlink:to="lab_us-gaap_IncrementalCommonSharesAttributableToCallOptionsAndWarrants" />

    <loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2014/elts/us-gaap-2014-01-31.xsd#us-gaap_WeightedAverageNumberOfDilutedSharesOutstanding" xlink:label="loc_us-gaap_WeightedAverageNumberOfDilutedSharesOutstanding" />

    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_us-gaap_WeightedAverageNumberOfDilutedSharesOutstanding" xml:lang="en-US">Weighted Average Number Of Shares Outstanding, Diluted</label>

    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="lab_us-gaap_WeightedAverageNumberOfDilutedSharesOutstanding" xml:lang="en-US">Weighted average numberof shares, For the computation of diluted loss (in shares)</label>

    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="lab_us-gaap_WeightedAverageNumberOfDilutedSharesOutstanding" xml:lang="en-US">Weighted average number of Common stock used in computing diluted loss per share (in shares)</label>

    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_WeightedAverageNumberOfDilutedSharesOutstanding" xlink:to="lab_us-gaap_WeightedAverageNumberOfDilutedSharesOutstanding" />

    <loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2014/elts/us-gaap-2014-01-31.xsd#us-gaap_NetIncomeLossAvailableToCommonStockholdersBasic" xlink:label="loc_us-gaap_NetIncomeLossAvailableToCommonStockholdersBasic" />

    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_us-gaap_NetIncomeLossAvailableToCommonStockholdersBasic" xml:lang="en-US">Net Income (Loss) Available to Common Stockholders, Basic, Total</label>

    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="lab_us-gaap_NetIncomeLossAvailableToCommonStockholdersBasic" xml:lang="en-US">For the computation of basic loss, Loss</label>

    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_NetIncomeLossAvailableToCommonStockholdersBasic" xlink:to="lab_us-gaap_NetIncomeLossAvailableToCommonStockholdersBasic" />

    <loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2014/elts/us-gaap-2014-01-31.xsd#us-gaap_DilutiveSecuritiesEffectOnBasicEarningsPerShareOther" xlink:label="loc_us-gaap_DilutiveSecuritiesEffectOnBasicEarningsPerShareOther" />

    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_us-gaap_DilutiveSecuritiesEffectOnBasicEarningsPerShareOther" xml:lang="en-US">Dilutive Securities, Effect on Basic Earnings Per Share, Dilutive Convertible Securities</label>

    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="lab_us-gaap_DilutiveSecuritiesEffectOnBasicEarningsPerShareOther" xml:lang="en-US">Effect of potential dilutive common shares issuable upon exercise of warrants classified as liability, Loss</label>

    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_DilutiveSecuritiesEffectOnBasicEarningsPerShareOther" xlink:to="lab_us-gaap_DilutiveSecuritiesEffectOnBasicEarningsPerShareOther" />

    <loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2014/elts/us-gaap-2014-01-31.xsd#us-gaap_NetIncomeLossAttributableToParentDiluted" xlink:label="loc_us-gaap_NetIncomeLossAttributableToParentDiluted" />

    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_us-gaap_NetIncomeLossAttributableToParentDiluted" xml:lang="en-US">Net Income (Loss) Attributable to Parent, Diluted, Total</label>

    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="lab_us-gaap_NetIncomeLossAttributableToParentDiluted" xml:lang="en-US">For the computation of diluted loss, Loss</label>

    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_NetIncomeLossAttributableToParentDiluted" xlink:to="lab_us-gaap_NetIncomeLossAttributableToParentDiluted" />

    <loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2014/elts/us-gaap-2014-01-31.xsd#us-gaap_AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareAmount" xlink:label="loc_us-gaap_AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareAmount" />

    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_us-gaap_AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareAmount" xml:lang="en-US">Antidilutive Securities Excluded from Computation of Earnings Per Share, Amount</label>

    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="lab_us-gaap_AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareAmount" xml:lang="en-US">Antidilutive Securities Excluded from Computation of Loss Per Share, Amount</label>

    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareAmount" xlink:to="lab_us-gaap_AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareAmount" />

    <loc xlink:type="locator" xlink:href="mdgn-20140930.xsd#mdgn_ConsolidatedBalanceSheetsParentheticalAbstract" xlink:label="loc_mdgn_ConsolidatedBalanceSheetsParentheticalAbstract" />

    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_mdgn_ConsolidatedBalanceSheetsParentheticalAbstract" xml:lang="en-US">Consolidated Balance Sheets [Parenthetical] [Abstract]</label>

    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_mdgn_ConsolidatedBalanceSheetsParentheticalAbstract" xlink:to="lab_mdgn_ConsolidatedBalanceSheetsParentheticalAbstract" />

    <loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2014/elts/us-gaap-2014-01-31.xsd#us-gaap_CommonStockParOrStatedValuePerShare" xlink:label="loc_us-gaap_CommonStockParOrStatedValuePerShare" />

    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_us-gaap_CommonStockParOrStatedValuePerShare" xml:lang="en-US">Common Stock, Par Or Stated Value Per Share</label>

    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="lab_us-gaap_CommonStockParOrStatedValuePerShare" xml:lang="en-US">Common stock, par value (in dollars per share)</label>

    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_CommonStockParOrStatedValuePerShare" xlink:to="lab_us-gaap_CommonStockParOrStatedValuePerShare" />

    <loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2014/elts/us-gaap-2014-01-31.xsd#us-gaap_CommonStockSharesAuthorized" xlink:label="loc_us-gaap_CommonStockSharesAuthorized" />

    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_us-gaap_CommonStockSharesAuthorized" xml:lang="en-US">Common Stock, Shares Authorized</label>

    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="lab_us-gaap_CommonStockSharesAuthorized" xml:lang="en-US">Common stock, shares authorized</label>

    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_CommonStockSharesAuthorized" xlink:to="lab_us-gaap_CommonStockSharesAuthorized" />

    <loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2014/elts/us-gaap-2014-01-31.xsd#us-gaap_CommonStockSharesIssued" xlink:label="loc_us-gaap_CommonStockSharesIssued" />

    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_us-gaap_CommonStockSharesIssued" xml:lang="en-US">Common Stock, Shares, Issued</label>

    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="lab_us-gaap_CommonStockSharesIssued" xml:lang="en-US">Common stock, shares issued</label>

    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_CommonStockSharesIssued" xlink:to="lab_us-gaap_CommonStockSharesIssued" />

    <loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2014/elts/us-gaap-2014-01-31.xsd#us-gaap_CommonStockSharesOutstanding" xlink:label="loc_us-gaap_CommonStockSharesOutstanding" />

    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_us-gaap_CommonStockSharesOutstanding" xml:lang="en-US">Common Stock, Shares, Outstanding</label>

    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="lab_us-gaap_CommonStockSharesOutstanding" xml:lang="en-US">Common stock, shares outstanding</label>

    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_CommonStockSharesOutstanding" xlink:to="lab_us-gaap_CommonStockSharesOutstanding" />

    <loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2014/elts/us-gaap-2014-01-31.xsd#us-gaap_IncomeStatementAbstract" xlink:label="loc_us-gaap_IncomeStatementAbstract" />

    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_us-gaap_IncomeStatementAbstract" xml:lang="en-US">Income Statement [Abstract]</label>

    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_IncomeStatementAbstract" xlink:to="lab_us-gaap_IncomeStatementAbstract" />

    <loc xlink:type="locator" xlink:href="mdgn-20140930.xsd#mdgn_ResearchAndDevelopmentExpensesGross" xlink:label="loc_mdgn_ResearchAndDevelopmentExpensesGross" />

    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_mdgn_ResearchAndDevelopmentExpensesGross" xml:lang="en-US">Research and Development Expenses Gross</label>

    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="lab_mdgn_ResearchAndDevelopmentExpensesGross" xml:lang="en-US">Research and development expenses</label>

    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="lab_mdgn_ResearchAndDevelopmentExpensesGross" xml:lang="en-US">The amount of costs incurred under a research and development arrangement.</label>

    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_mdgn_ResearchAndDevelopmentExpensesGross" xlink:to="lab_mdgn_ResearchAndDevelopmentExpensesGross" />

    <loc xlink:type="locator" xlink:href="mdgn-20140930.xsd#mdgn_LessParticipationByOfficeOfChiefScientist" xlink:label="loc_mdgn_LessParticipationByOfficeOfChiefScientist" />

    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_mdgn_LessParticipationByOfficeOfChiefScientist" xml:lang="en-US">Less - Participation By Office Of Chief Scientist</label>

    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2009/role/negatedLabel" xlink:label="lab_mdgn_LessParticipationByOfficeOfChiefScientist" xml:lang="en-US">Less: Participation by the Office of the Chief Scientist</label>

    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="lab_mdgn_LessParticipationByOfficeOfChiefScientist" xml:lang="en-US">Participation by the Office of the Chief Scientist reducing the research and development expense.</label>

    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_mdgn_LessParticipationByOfficeOfChiefScientist" xlink:to="lab_mdgn_LessParticipationByOfficeOfChiefScientist" />

    <loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2014/elts/us-gaap-2014-01-31.xsd#us-gaap_ResearchAndDevelopmentExpense" xlink:label="loc_us-gaap_ResearchAndDevelopmentExpense" />

    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_us-gaap_ResearchAndDevelopmentExpense" xml:lang="en-US">Research and Development Expense</label>

    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/totalLabel" xlink:label="lab_us-gaap_ResearchAndDevelopmentExpense" xml:lang="en-US">Research and development expenses, net</label>

    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_ResearchAndDevelopmentExpense" xlink:to="lab_us-gaap_ResearchAndDevelopmentExpense" />

    <loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2014/elts/us-gaap-2014-01-31.xsd#us-gaap_GeneralAndAdministrativeExpense" xlink:label="loc_us-gaap_GeneralAndAdministrativeExpense" />

    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_us-gaap_GeneralAndAdministrativeExpense" xml:lang="en-US">General and Administrative Expense</label>

    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="lab_us-gaap_GeneralAndAdministrativeExpense" xml:lang="en-US">General and administrative expenses</label>

    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_GeneralAndAdministrativeExpense" xlink:to="lab_us-gaap_GeneralAndAdministrativeExpense" />

    <loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2014/elts/us-gaap-2014-01-31.xsd#us-gaap_OtherIncomeAbstract" xlink:label="loc_us-gaap_OtherIncomeAbstract" />

    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_us-gaap_OtherIncomeAbstract" xml:lang="en-US">Other Income [Abstract]</label>

    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="lab_us-gaap_OtherIncomeAbstract" xml:lang="en-US">Other income:</label>

    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_OtherIncomeAbstract" xlink:to="lab_us-gaap_OtherIncomeAbstract" />

    <loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2014/elts/us-gaap-2014-01-31.xsd#us-gaap_OperatingIncomeLoss" xlink:label="loc_us-gaap_OperatingIncomeLoss" />

    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_us-gaap_OperatingIncomeLoss" xml:lang="en-US">Operating Income (Loss)</label>

    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/totalLabel" xlink:label="lab_us-gaap_OperatingIncomeLoss" xml:lang="en-US">Operating loss</label>

    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_OperatingIncomeLoss" xlink:to="lab_us-gaap_OperatingIncomeLoss" />

    <loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2014/elts/us-gaap-2014-01-31.xsd#us-gaap_OtherNonoperatingExpense" xlink:label="loc_us-gaap_OtherNonoperatingExpense" />

    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_us-gaap_OtherNonoperatingExpense" xml:lang="en-US">Other Nonoperating Expense</label>

    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2009/role/negatedLabel" xlink:label="lab_us-gaap_OtherNonoperatingExpense" xml:lang="en-US">Financial expenses</label>

    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_OtherNonoperatingExpense" xlink:to="lab_us-gaap_OtherNonoperatingExpense" />

    <loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2014/elts/us-gaap-2014-01-31.xsd#us-gaap_OtherNonoperatingIncome" xlink:label="loc_us-gaap_OtherNonoperatingIncome" />

    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_us-gaap_OtherNonoperatingIncome" xml:lang="en-US">Other Nonoperating Income</label>

    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="lab_us-gaap_OtherNonoperatingIncome" xml:lang="en-US">Financial income</label>

    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_OtherNonoperatingIncome" xlink:to="lab_us-gaap_OtherNonoperatingIncome" />

    <loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2014/elts/us-gaap-2014-01-31.xsd#us-gaap_IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest" xlink:label="loc_us-gaap_IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest" />

    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_us-gaap_IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest" xml:lang="en-US">Income (Loss) From Continuing Operations Before Income Taxes, Extraordinary Items, Noncontrolling Interest</label>

    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/totalLabel" xlink:label="lab_us-gaap_IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest" xml:lang="en-US">Loss before taxes on income</label>

    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest" xlink:to="lab_us-gaap_IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest" />

    <loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2014/elts/us-gaap-2014-01-31.xsd#us-gaap_IncomeTaxExpenseBenefit" xlink:label="loc_us-gaap_IncomeTaxExpenseBenefit" />

    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_us-gaap_IncomeTaxExpenseBenefit" xml:lang="en-US">Income Tax Expense (Benefit)</label>

    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="lab_us-gaap_IncomeTaxExpenseBenefit" xml:lang="en-US">Taxes on income</label>

    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_IncomeTaxExpenseBenefit" xlink:to="lab_us-gaap_IncomeTaxExpenseBenefit" />

    <loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2014/elts/us-gaap-2014-01-31.xsd#us-gaap_EarningsPerShareBasic" xlink:label="loc_us-gaap_EarningsPerShareBasic" />

    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_us-gaap_EarningsPerShareBasic" xml:lang="en-US">Earnings Per Share, Basic, Total</label>

    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="lab_us-gaap_EarningsPerShareBasic" xml:lang="en-US">Basic loss per share (in dollars per share)</label>

    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_EarningsPerShareBasic" xlink:to="lab_us-gaap_EarningsPerShareBasic" />

    <loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2014/elts/us-gaap-2014-01-31.xsd#us-gaap_EarningsPerShareDiluted" xlink:label="loc_us-gaap_EarningsPerShareDiluted" />

    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_us-gaap_EarningsPerShareDiluted" xml:lang="en-US">Earnings Per Share, Diluted, Total</label>

    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="lab_us-gaap_EarningsPerShareDiluted" xml:lang="en-US">Diluted loss per share (in dollars per share)</label>

    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_EarningsPerShareDiluted" xlink:to="lab_us-gaap_EarningsPerShareDiluted" />

    <loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2014/elts/us-gaap-2014-01-31.xsd#us-gaap_StatementOfStockholdersEquityAbstract" xlink:label="loc_us-gaap_StatementOfStockholdersEquityAbstract" />

    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_us-gaap_StatementOfStockholdersEquityAbstract" xml:lang="en-US">Statement Of Stockholders&#39; Equity [Abstract]</label>

    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_StatementOfStockholdersEquityAbstract" xlink:to="lab_us-gaap_StatementOfStockholdersEquityAbstract" />

    <loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2014/elts/us-gaap-2014-01-31.xsd#us-gaap_PreferredStockMember" xlink:label="loc_us-gaap_PreferredStockMember" />

    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_us-gaap_PreferredStockMember" xml:lang="en-US">Preferred Stock [Member]</label>

    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_PreferredStockMember" xlink:to="lab_us-gaap_PreferredStockMember" />

    <loc xlink:type="locator" xlink:href="mdgn-20140930.xsd#mdgn_OldCommonStockMember" xlink:label="loc_mdgn_OldCommonStockMember" />

    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_mdgn_OldCommonStockMember" xml:lang="en-US">Old Common Stock [Member]</label>

    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_mdgn_OldCommonStockMember" xlink:to="lab_mdgn_OldCommonStockMember" />

    <loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2014/elts/us-gaap-2014-01-31.xsd#us-gaap_DeferredCompensationShareBasedPaymentsMember" xlink:label="loc_us-gaap_DeferredCompensationShareBasedPaymentsMember" />

    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_us-gaap_DeferredCompensationShareBasedPaymentsMember" xml:lang="en-US">Deferred Compensation, Share-based Payments [Member]</label>

    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_DeferredCompensationShareBasedPaymentsMember" xlink:to="lab_us-gaap_DeferredCompensationShareBasedPaymentsMember" />

    <loc xlink:type="locator" xlink:href="mdgn-20140930.xsd#mdgn_ReceiptsOnAccountOfSharesMember" xlink:label="loc_mdgn_ReceiptsOnAccountOfSharesMember" />

    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_mdgn_ReceiptsOnAccountOfSharesMember" xml:lang="en-US">Receipts On Account Of Shares [Member]</label>

    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_mdgn_ReceiptsOnAccountOfSharesMember" xlink:to="lab_mdgn_ReceiptsOnAccountOfSharesMember" />

    <loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2014/elts/us-gaap-2014-01-31.xsd#us-gaap_SeriesAPreferredStockMember" xlink:label="loc_us-gaap_SeriesAPreferredStockMember" />

    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_us-gaap_SeriesAPreferredStockMember" xml:lang="en-US">Series A Preferred Stock [Member]</label>

    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_SeriesAPreferredStockMember" xlink:to="lab_us-gaap_SeriesAPreferredStockMember" />

    <loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2014/elts/us-gaap-2014-01-31.xsd#us-gaap_SeriesBPreferredStockMember" xlink:label="loc_us-gaap_SeriesBPreferredStockMember" />

    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_us-gaap_SeriesBPreferredStockMember" xml:lang="en-US">Series B Preferred Stock [Member]</label>

    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_SeriesBPreferredStockMember" xlink:to="lab_us-gaap_SeriesBPreferredStockMember" />

    <loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2014/elts/us-gaap-2014-01-31.xsd#us-gaap_SharesOutstanding" xlink:label="loc_us-gaap_SharesOutstanding" />

    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_us-gaap_SharesOutstanding" xml:lang="en-US">Balance (In Shares)</label>

    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/periodStartLabel" xlink:label="lab_us-gaap_SharesOutstanding" xml:lang="en-US">Balance (in shares)</label>

    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/periodEndLabel" xlink:label="lab_us-gaap_SharesOutstanding" xml:lang="en-US">Balance (in shares)</label>

    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_SharesOutstanding" xlink:to="lab_us-gaap_SharesOutstanding" />

    <loc xlink:type="locator" xlink:href="mdgn-20140930.xsd#mdgn_StockIssuedAndVestedDuringPeriodValueRestrictedStockAwardToDirectorsAndEmployee" xlink:label="loc_mdgn_StockIssuedAndVestedDuringPeriodValueRestrictedStockAwardToDirectorsAndEmployee" />

    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_mdgn_StockIssuedAndVestedDuringPeriodValueRestrictedStockAwardToDirectorsAndEmployee" xml:lang="en-US">Stock Issued And Vested During Period Value Restricted Stock Award To Directors And Employee</label>

    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="lab_mdgn_StockIssuedAndVestedDuringPeriodValueRestrictedStockAwardToDirectorsAndEmployee" xml:lang="en-US">Stock-based compensation related to the issuance and vesting of restricted common stock to directors and an employee, net</label>

    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="lab_mdgn_StockIssuedAndVestedDuringPeriodValueRestrictedStockAwardToDirectorsAndEmployee" xml:lang="en-US">Value of stock related to restricted stock awards issued and vested to directors and an employee during the period, net of the stock value of such awards forfeited.</label>

    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_mdgn_StockIssuedAndVestedDuringPeriodValueRestrictedStockAwardToDirectorsAndEmployee" xlink:to="lab_mdgn_StockIssuedAndVestedDuringPeriodValueRestrictedStockAwardToDirectorsAndEmployee" />

    <loc xlink:type="locator" xlink:href="mdgn-20140930.xsd#mdgn_StockIssuedAndVestedDuringPeriodSharesRestrictedStockAwardToDirectorsAndEmployee" xlink:label="loc_mdgn_StockIssuedAndVestedDuringPeriodSharesRestrictedStockAwardToDirectorsAndEmployee" />

    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_mdgn_StockIssuedAndVestedDuringPeriodSharesRestrictedStockAwardToDirectorsAndEmployee" xml:lang="en-US">Stock Issued And Vested During Period Shares Restricted Stock Award To Directors And Employee</label>

    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="lab_mdgn_StockIssuedAndVestedDuringPeriodSharesRestrictedStockAwardToDirectorsAndEmployee" xml:lang="en-US">Stock-based compensation related to the issuance and vesting of restricted common stock to directors and an employee, net (in shares)</label>

    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="lab_mdgn_StockIssuedAndVestedDuringPeriodSharesRestrictedStockAwardToDirectorsAndEmployee" xml:lang="en-US">Number of stock related to restricted stock awards issued and vested to directors and an employee during the period, net of the stock value of such awards forfeited.</label>

    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_mdgn_StockIssuedAndVestedDuringPeriodSharesRestrictedStockAwardToDirectorsAndEmployee" xlink:to="lab_mdgn_StockIssuedAndVestedDuringPeriodSharesRestrictedStockAwardToDirectorsAndEmployee" />

    <loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2014/elts/us-gaap-2014-01-31.xsd#us-gaap_AdjustmentsToAdditionalPaidInCapitalSharebasedCompensationRequisiteServicePeriodRecognitionValue" xlink:label="loc_us-gaap_AdjustmentsToAdditionalPaidInCapitalSharebasedCompensationRequisiteServicePeriodRecognitionValue" />

    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_us-gaap_AdjustmentsToAdditionalPaidInCapitalSharebasedCompensationRequisiteServicePeriodRecognitionValue" xml:lang="en-US">Adjustments to Additional Paid in Capital, Share-based Compensation, Requisite Service Period Recognition, Total</label>

    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="lab_us-gaap_AdjustmentsToAdditionalPaidInCapitalSharebasedCompensationRequisiteServicePeriodRecognitionValue" xml:lang="en-US">Stock-based compensation related to options and warrants granted to consultants, directors and employees</label>

    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_AdjustmentsToAdditionalPaidInCapitalSharebasedCompensationRequisiteServicePeriodRecognitionValue" xlink:to="lab_us-gaap_AdjustmentsToAdditionalPaidInCapitalSharebasedCompensationRequisiteServicePeriodRecognitionValue" />

    <loc xlink:type="locator" xlink:href="mdgn-20140930.xsd#mdgn_StockIssuedDuringPeriodValueStockOptionsAndWarrantsExercised" xlink:label="loc_mdgn_StockIssuedDuringPeriodValueStockOptionsAndWarrantsExercised" />

    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_mdgn_StockIssuedDuringPeriodValueStockOptionsAndWarrantsExercised" xml:lang="en-US">Stock Issued During Period Value Stock Options And Warrants Exercised</label>

    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="lab_mdgn_StockIssuedDuringPeriodValueStockOptionsAndWarrantsExercised" xml:lang="en-US">Exercise of warrants and options</label>

    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="lab_mdgn_StockIssuedDuringPeriodValueStockOptionsAndWarrantsExercised" xml:lang="en-US">Cash received upon exercise of options.</label>

    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_mdgn_StockIssuedDuringPeriodValueStockOptionsAndWarrantsExercised" xlink:to="lab_mdgn_StockIssuedDuringPeriodValueStockOptionsAndWarrantsExercised" />

    <loc xlink:type="locator" xlink:href="mdgn-20140930.xsd#mdgn_StockIssuedDuringPeriodSharesStockOptionsAndWarrantsExercised" xlink:label="loc_mdgn_StockIssuedDuringPeriodSharesStockOptionsAndWarrantsExercised" />

    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_mdgn_StockIssuedDuringPeriodSharesStockOptionsAndWarrantsExercised" xml:lang="en-US">Stock Issued During Period Shares Stock Options And Warrants Exercised</label>

    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="lab_mdgn_StockIssuedDuringPeriodSharesStockOptionsAndWarrantsExercised" xml:lang="en-US">Exercise of warrants and options (in shares)</label>

    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="lab_mdgn_StockIssuedDuringPeriodSharesStockOptionsAndWarrantsExercised" xml:lang="en-US">Number of shares issued during the period as a result of the exercise of options and warrants.</label>

    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_mdgn_StockIssuedDuringPeriodSharesStockOptionsAndWarrantsExercised" xlink:to="lab_mdgn_StockIssuedDuringPeriodSharesStockOptionsAndWarrantsExercised" />

    <loc xlink:type="locator" xlink:href="mdgn-20140930.xsd#mdgn_StockIssuedDuringPeriodValueStockAndWarrants" xlink:label="loc_mdgn_StockIssuedDuringPeriodValueStockAndWarrants" />

    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_mdgn_StockIssuedDuringPeriodValueStockAndWarrants" xml:lang="en-US">Stock Issued During Period Value Stock And Warrants</label>

    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="lab_mdgn_StockIssuedDuringPeriodValueStockAndWarrants" xml:lang="en-US">Issuance of Common stock and warrants at $ 5.24 per share and $ 0.01 per warrant</label>

    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="lab_mdgn_StockIssuedDuringPeriodValueStockAndWarrants" xml:lang="en-US">The net amount of Common stock and warrants issued during the period as a result of an Underwritten Public Offering.</label>

    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_mdgn_StockIssuedDuringPeriodValueStockAndWarrants" xlink:to="lab_mdgn_StockIssuedDuringPeriodValueStockAndWarrants" />

    <loc xlink:type="locator" xlink:href="mdgn-20140930.xsd#mdgn_StockIssuedDuringPeriodSharesStockAndWarrants" xlink:label="loc_mdgn_StockIssuedDuringPeriodSharesStockAndWarrants" />

    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_mdgn_StockIssuedDuringPeriodSharesStockAndWarrants" xml:lang="en-US">Stock Issued During Period Shares Stock And Warrants</label>

    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="lab_mdgn_StockIssuedDuringPeriodSharesStockAndWarrants" xml:lang="en-US">Issuance of Common stock and warrants at $5.24 per share and $0.01 per warrant (in shares)</label>

    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="lab_mdgn_StockIssuedDuringPeriodSharesStockAndWarrants" xml:lang="en-US">Number of Common stock and warrants issued during the period.</label>

    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_mdgn_StockIssuedDuringPeriodSharesStockAndWarrants" xlink:to="lab_mdgn_StockIssuedDuringPeriodSharesStockAndWarrants" />

    <loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2014/elts/us-gaap-2014-01-31.xsd#us-gaap_StockIssuedDuringPeriodValueIssuedForServices" xlink:label="loc_us-gaap_StockIssuedDuringPeriodValueIssuedForServices" />

    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_us-gaap_StockIssuedDuringPeriodValueIssuedForServices" xml:lang="en-US">Stock Issued During Period, Value, Issued for Services</label>

    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="lab_us-gaap_StockIssuedDuringPeriodValueIssuedForServices" xml:lang="en-US">Stock based compensation related to the issuance of Common stock to consultants</label>

    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_StockIssuedDuringPeriodValueIssuedForServices" xlink:to="lab_us-gaap_StockIssuedDuringPeriodValueIssuedForServices" />

    <loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2014/elts/us-gaap-2014-01-31.xsd#us-gaap_StockIssuedDuringPeriodSharesIssuedForServices" xlink:label="loc_us-gaap_StockIssuedDuringPeriodSharesIssuedForServices" />

    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_us-gaap_StockIssuedDuringPeriodSharesIssuedForServices" xml:lang="en-US">Stock Issued During Period, Shares, Issued for Services</label>

    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="lab_us-gaap_StockIssuedDuringPeriodSharesIssuedForServices" xml:lang="en-US">Stock based compensation related to the issuance of Common stock to consultants (in shares)</label>

    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_StockIssuedDuringPeriodSharesIssuedForServices" xlink:to="lab_us-gaap_StockIssuedDuringPeriodSharesIssuedForServices" />

    <loc xlink:type="locator" xlink:href="mdgn-20140930.xsd#mdgn_IssuanceOfCommonStockPricePerCommonstock" xlink:label="loc_mdgn_IssuanceOfCommonStockPricePerCommonstock" />

    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_mdgn_IssuanceOfCommonStockPricePerCommonstock" xml:lang="en-US">Issuance Of Common Stock Price Per CommonStock</label>

    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="lab_mdgn_IssuanceOfCommonStockPricePerCommonstock" xml:lang="en-US">Issuance Of Common Stock Price Per Common Stock (in dollars per share)</label>

    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="lab_mdgn_IssuanceOfCommonStockPricePerCommonstock" xml:lang="en-US">Price per Common stock issued during period.</label>

    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_mdgn_IssuanceOfCommonStockPricePerCommonstock" xlink:to="lab_mdgn_IssuanceOfCommonStockPricePerCommonstock" />

    <loc xlink:type="locator" xlink:href="mdgn-20140930.xsd#mdgn_IssuanceOfWarrantsNewIssuesPricePerWarrant" xlink:label="loc_mdgn_IssuanceOfWarrantsNewIssuesPricePerWarrant" />

    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_mdgn_IssuanceOfWarrantsNewIssuesPricePerWarrant" xml:lang="en-US">Issuance Of Warrants New Issues Price Per Warrant</label>

    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="lab_mdgn_IssuanceOfWarrantsNewIssuesPricePerWarrant" xml:lang="en-US">Issuance Of Warrants New Issues Price Per Warrant (in dollars per share)</label>

    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="lab_mdgn_IssuanceOfWarrantsNewIssuesPricePerWarrant" xml:lang="en-US">Price per warrants issued during period.</label>

    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_mdgn_IssuanceOfWarrantsNewIssuesPricePerWarrant" xlink:to="lab_mdgn_IssuanceOfWarrantsNewIssuesPricePerWarrant" />

    <loc xlink:type="locator" xlink:href="mdgn-20140930.xsd#mdgn_UnissuedStockDuringPeriod" xlink:label="loc_mdgn_UnissuedStockDuringPeriod" />

    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_mdgn_UnissuedStockDuringPeriod" xml:lang="en-US">Unissued Stock During Period</label>

    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="lab_mdgn_UnissuedStockDuringPeriod" xml:lang="en-US">Unissued Stock During Period (in shares)</label>

    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="lab_mdgn_UnissuedStockDuringPeriod" xml:lang="en-US">Unissued stock during period.</label>

    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_mdgn_UnissuedStockDuringPeriod" xlink:to="lab_mdgn_UnissuedStockDuringPeriod" />

    <loc xlink:type="locator" xlink:href="mdgn-20140930.xsd#mdgn_UnvestedRestrictedStockDuringPeriod" xlink:label="loc_mdgn_UnvestedRestrictedStockDuringPeriod" />

    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_mdgn_UnvestedRestrictedStockDuringPeriod" xml:lang="en-US">Unvested Restricted Stock During Period</label>

    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="lab_mdgn_UnvestedRestrictedStockDuringPeriod" xml:lang="en-US">Unvested restricted stock during period (in shares)</label>

    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="lab_mdgn_UnvestedRestrictedStockDuringPeriod" xml:lang="en-US">Unvested restricted stock during period.</label>

    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_mdgn_UnvestedRestrictedStockDuringPeriod" xlink:to="lab_mdgn_UnvestedRestrictedStockDuringPeriod" />

    <loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2014/elts/us-gaap-2014-01-31.xsd#us-gaap_StatementOfCashFlowsAbstract" xlink:label="loc_us-gaap_StatementOfCashFlowsAbstract" />

    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_us-gaap_StatementOfCashFlowsAbstract" xml:lang="en-US">Statement Of Cash Flows [Abstract]</label>

    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_StatementOfCashFlowsAbstract" xlink:to="lab_us-gaap_StatementOfCashFlowsAbstract" />

    <loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2014/elts/us-gaap-2014-01-31.xsd#us-gaap_NetCashProvidedByUsedInOperatingActivitiesContinuingOperationsAbstract" xlink:label="loc_us-gaap_NetCashProvidedByUsedInOperatingActivitiesContinuingOperationsAbstract" />

    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_us-gaap_NetCashProvidedByUsedInOperatingActivitiesContinuingOperationsAbstract" xml:lang="en-US">Net Cash Provided by (Used in) Operating Activities, Continuing Operations [Abstract]</label>

    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="lab_us-gaap_NetCashProvidedByUsedInOperatingActivitiesContinuingOperationsAbstract" xml:lang="en-US">CASH FLOWS FROM OPERATING ACTIVITIES:</label>

    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_NetCashProvidedByUsedInOperatingActivitiesContinuingOperationsAbstract" xlink:to="lab_us-gaap_NetCashProvidedByUsedInOperatingActivitiesContinuingOperationsAbstract" />

    <loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2014/elts/us-gaap-2014-01-31.xsd#us-gaap_AdjustmentsToReconcileNetIncomeLossToCashProvidedByUsedInOperatingActivitiesAbstract" xlink:label="loc_us-gaap_AdjustmentsToReconcileNetIncomeLossToCashProvidedByUsedInOperatingActivitiesAbstract" />

    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_us-gaap_AdjustmentsToReconcileNetIncomeLossToCashProvidedByUsedInOperatingActivitiesAbstract" xml:lang="en-US">Adjustments To Reconcile Net Income (Loss) To Cash Provided By (Used In) Operating Activities [Abstract]</label>

    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="lab_us-gaap_AdjustmentsToReconcileNetIncomeLossToCashProvidedByUsedInOperatingActivitiesAbstract" xml:lang="en-US">Adjustments to reconcile loss to net cash used in operating activities:</label>

    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_AdjustmentsToReconcileNetIncomeLossToCashProvidedByUsedInOperatingActivitiesAbstract" xlink:to="lab_us-gaap_AdjustmentsToReconcileNetIncomeLossToCashProvidedByUsedInOperatingActivitiesAbstract" />

    <loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2014/elts/us-gaap-2014-01-31.xsd#us-gaap_Depreciation" xlink:label="loc_us-gaap_Depreciation" />

    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_us-gaap_Depreciation" xml:lang="en-US">Depreciation</label>

    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="lab_us-gaap_Depreciation" xml:lang="en-US">Depreciation</label>

    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_Depreciation" xlink:to="lab_us-gaap_Depreciation" />

    <loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2014/elts/us-gaap-2014-01-31.xsd#us-gaap_ShareBasedCompensation" xlink:label="loc_us-gaap_ShareBasedCompensation" />

    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_us-gaap_ShareBasedCompensation" xml:lang="en-US">Share-based Compensation, Total</label>

    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="lab_us-gaap_ShareBasedCompensation" xml:lang="en-US">Stock-based compensation related to options, warrants, common shares and restricted shares granted to employees, directors and consultants</label>

    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_ShareBasedCompensation" xlink:to="lab_us-gaap_ShareBasedCompensation" />

    <loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2014/elts/us-gaap-2014-01-31.xsd#us-gaap_FairValueAdjustmentOfWarrants" xlink:label="loc_us-gaap_FairValueAdjustmentOfWarrants" />

    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_us-gaap_FairValueAdjustmentOfWarrants" xml:lang="en-US">Fair Value Adjustment of Warrants</label>

    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="lab_us-gaap_FairValueAdjustmentOfWarrants" xml:lang="en-US">Change in fair value of warrants</label>

    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_FairValueAdjustmentOfWarrants" xlink:to="lab_us-gaap_FairValueAdjustmentOfWarrants" />

    <loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2014/elts/us-gaap-2014-01-31.xsd#us-gaap_SeveranceCosts1" xlink:label="loc_us-gaap_SeveranceCosts1" />

    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_us-gaap_SeveranceCosts1" xml:lang="en-US">Severance Costs</label>

    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="lab_us-gaap_SeveranceCosts1" xml:lang="en-US">Accrued severance pay, net</label>

    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_SeveranceCosts1" xlink:to="lab_us-gaap_SeveranceCosts1" />

    <loc xlink:type="locator" xlink:href="mdgn-20140930.xsd#mdgn_ExchangeDifferencesOnRestrictedLeaseDeposit" xlink:label="loc_mdgn_ExchangeDifferencesOnRestrictedLeaseDeposit" />

    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_mdgn_ExchangeDifferencesOnRestrictedLeaseDeposit" xml:lang="en-US">Exchange Differences On Restricted Lease Deposit</label>

    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2009/role/negatedLabel" xlink:label="lab_mdgn_ExchangeDifferencesOnRestrictedLeaseDeposit" xml:lang="en-US">Exchange differences on a restricted lease deposit and on long term loan</label>

    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="lab_mdgn_ExchangeDifferencesOnRestrictedLeaseDeposit" xml:lang="en-US">The amount of expense recognized that reflects the exchange differences on a restricted lease deposit and on a long term loan.</label>

    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_mdgn_ExchangeDifferencesOnRestrictedLeaseDeposit" xlink:to="lab_mdgn_ExchangeDifferencesOnRestrictedLeaseDeposit" />

    <loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2014/elts/us-gaap-2014-01-31.xsd#us-gaap_IncreaseDecreaseInOperatingCapitalAbstract" xlink:label="loc_us-gaap_IncreaseDecreaseInOperatingCapitalAbstract" />

    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_us-gaap_IncreaseDecreaseInOperatingCapitalAbstract" xml:lang="en-US">Increase (Decrease) in Operating Capital [Abstract]</label>

    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="lab_us-gaap_IncreaseDecreaseInOperatingCapitalAbstract" xml:lang="en-US">Changes in operating assets and liabilities:</label>

    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_IncreaseDecreaseInOperatingCapitalAbstract" xlink:to="lab_us-gaap_IncreaseDecreaseInOperatingCapitalAbstract" />

    <loc xlink:type="locator" xlink:href="mdgn-20140930.xsd#mdgn_IncreaseDecreaseInAccountsReceivableAndPrepaidExpenses" xlink:label="loc_mdgn_IncreaseDecreaseInAccountsReceivableAndPrepaidExpenses" />

    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_mdgn_IncreaseDecreaseInAccountsReceivableAndPrepaidExpenses" xml:lang="en-US">Increase Decrease In Accounts Receivable and Prepaid Expenses</label>

    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2009/role/negatedLabel" xlink:label="lab_mdgn_IncreaseDecreaseInAccountsReceivableAndPrepaidExpenses" xml:lang="en-US">Accounts receivable and prepaid expenses</label>

    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="lab_mdgn_IncreaseDecreaseInAccountsReceivableAndPrepaidExpenses" xml:lang="en-US">The increase (decrease) during the reporting period in the value of accounts receivable and prepaid expenses.</label>

    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_mdgn_IncreaseDecreaseInAccountsReceivableAndPrepaidExpenses" xlink:to="lab_mdgn_IncreaseDecreaseInAccountsReceivableAndPrepaidExpenses" />

    <loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2014/elts/us-gaap-2014-01-31.xsd#us-gaap_IncreaseDecreaseInAccountsPayableTrade" xlink:label="loc_us-gaap_IncreaseDecreaseInAccountsPayableTrade" />

    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_us-gaap_IncreaseDecreaseInAccountsPayableTrade" xml:lang="en-US">Increase (Decrease) In Accounts Payable, Trade</label>

    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="lab_us-gaap_IncreaseDecreaseInAccountsPayableTrade" xml:lang="en-US">Trade payables</label>

    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_IncreaseDecreaseInAccountsPayableTrade" xlink:to="lab_us-gaap_IncreaseDecreaseInAccountsPayableTrade" />

    <loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2014/elts/us-gaap-2014-01-31.xsd#us-gaap_IncreaseDecreaseInOtherAccountsPayableAndAccruedLiabilities" xlink:label="loc_us-gaap_IncreaseDecreaseInOtherAccountsPayableAndAccruedLiabilities" />

    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_us-gaap_IncreaseDecreaseInOtherAccountsPayableAndAccruedLiabilities" xml:lang="en-US">Increase (Decrease) in Other Accounts Payable and Accrued Liabilities</label>

    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="lab_us-gaap_IncreaseDecreaseInOtherAccountsPayableAndAccruedLiabilities" xml:lang="en-US">Other accounts payable and accrued expenses</label>

    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_IncreaseDecreaseInOtherAccountsPayableAndAccruedLiabilities" xlink:to="lab_us-gaap_IncreaseDecreaseInOtherAccountsPayableAndAccruedLiabilities" />

    <loc xlink:type="locator" xlink:href="mdgn-20140930.xsd#mdgn_IncreaseInRestrictedLeaseDepositAndPrepaidLeasePayments" xlink:label="loc_mdgn_IncreaseInRestrictedLeaseDepositAndPrepaidLeasePayments" />

    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_mdgn_IncreaseInRestrictedLeaseDepositAndPrepaidLeasePayments" xml:lang="en-US">Increase In Restricted Lease Deposit and Prepaid Lease Payments</label>

    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2009/role/negatedLabel" xlink:label="lab_mdgn_IncreaseInRestrictedLeaseDepositAndPrepaidLeasePayments" xml:lang="en-US">Restricted lease deposits</label>

    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="lab_mdgn_IncreaseInRestrictedLeaseDepositAndPrepaidLeasePayments" xml:lang="en-US">The net cash outflow for the increase associated with restricted lease deposits and prepaid lease payments that are classified as investing activities.</label>

    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_mdgn_IncreaseInRestrictedLeaseDepositAndPrepaidLeasePayments" xlink:to="lab_mdgn_IncreaseInRestrictedLeaseDepositAndPrepaidLeasePayments" />

    <loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2014/elts/us-gaap-2014-01-31.xsd#us-gaap_NetCashProvidedByUsedInOperatingActivitiesContinuingOperations" xlink:label="loc_us-gaap_NetCashProvidedByUsedInOperatingActivitiesContinuingOperations" />

    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_us-gaap_NetCashProvidedByUsedInOperatingActivitiesContinuingOperations" xml:lang="en-US">Net Cash Provided by (Used in) Operating Activities, Continuing Operations</label>

    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/totalLabel" xlink:label="lab_us-gaap_NetCashProvidedByUsedInOperatingActivitiesContinuingOperations" xml:lang="en-US">Net cash used in operating activities</label>

    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_NetCashProvidedByUsedInOperatingActivitiesContinuingOperations" xlink:to="lab_us-gaap_NetCashProvidedByUsedInOperatingActivitiesContinuingOperations" />

    <loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2014/elts/us-gaap-2014-01-31.xsd#us-gaap_NetCashProvidedByUsedInInvestingActivitiesContinuingOperationsAbstract" xlink:label="loc_us-gaap_NetCashProvidedByUsedInInvestingActivitiesContinuingOperationsAbstract" />

    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_us-gaap_NetCashProvidedByUsedInInvestingActivitiesContinuingOperationsAbstract" xml:lang="en-US">Net Cash Provided by (Used in) Investing Activities, Continuing Operations [Abstract]</label>

    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="lab_us-gaap_NetCashProvidedByUsedInInvestingActivitiesContinuingOperationsAbstract" xml:lang="en-US">CASH FLOWS FROM INVESTING ACTIVITIES:</label>

    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_NetCashProvidedByUsedInInvestingActivitiesContinuingOperationsAbstract" xlink:to="lab_us-gaap_NetCashProvidedByUsedInInvestingActivitiesContinuingOperationsAbstract" />

    <loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2014/elts/us-gaap-2014-01-31.xsd#us-gaap_PaymentsToAcquirePropertyPlantAndEquipment" xlink:label="loc_us-gaap_PaymentsToAcquirePropertyPlantAndEquipment" />

    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_us-gaap_PaymentsToAcquirePropertyPlantAndEquipment" xml:lang="en-US">Payments To Acquire Property, Plant, and Equipment</label>

    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2009/role/negatedLabel" xlink:label="lab_us-gaap_PaymentsToAcquirePropertyPlantAndEquipment" xml:lang="en-US">Purchase of property and equipment</label>

    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_PaymentsToAcquirePropertyPlantAndEquipment" xlink:to="lab_us-gaap_PaymentsToAcquirePropertyPlantAndEquipment" />

    <loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2014/elts/us-gaap-2014-01-31.xsd#us-gaap_NetCashProvidedByUsedInInvestingActivitiesContinuingOperations" xlink:label="loc_us-gaap_NetCashProvidedByUsedInInvestingActivitiesContinuingOperations" />

    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_us-gaap_NetCashProvidedByUsedInInvestingActivitiesContinuingOperations" xml:lang="en-US">Net Cash Provided by (Used in) Investing Activities, Continuing Operations</label>

    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/totalLabel" xlink:label="lab_us-gaap_NetCashProvidedByUsedInInvestingActivitiesContinuingOperations" xml:lang="en-US">Net cash used in investing activities</label>

    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_NetCashProvidedByUsedInInvestingActivitiesContinuingOperations" xlink:to="lab_us-gaap_NetCashProvidedByUsedInInvestingActivitiesContinuingOperations" />

    <loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2014/elts/us-gaap-2014-01-31.xsd#us-gaap_NetCashProvidedByUsedInFinancingActivitiesContinuingOperationsAbstract" xlink:label="loc_us-gaap_NetCashProvidedByUsedInFinancingActivitiesContinuingOperationsAbstract" />

    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_us-gaap_NetCashProvidedByUsedInFinancingActivitiesContinuingOperationsAbstract" xml:lang="en-US">Net Cash Provided by (Used in) Financing Activities, Continuing Operations [Abstract]</label>

    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="lab_us-gaap_NetCashProvidedByUsedInFinancingActivitiesContinuingOperationsAbstract" xml:lang="en-US">CASH FLOWS FROM FINANCING ACTIVITIES:</label>

    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_NetCashProvidedByUsedInFinancingActivitiesContinuingOperationsAbstract" xlink:to="lab_us-gaap_NetCashProvidedByUsedInFinancingActivitiesContinuingOperationsAbstract" />

    <loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2014/elts/us-gaap-2014-01-31.xsd#us-gaap_ProceedsFromIssuanceOrSaleOfEquity" xlink:label="loc_us-gaap_ProceedsFromIssuanceOrSaleOfEquity" />

    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_us-gaap_ProceedsFromIssuanceOrSaleOfEquity" xml:lang="en-US">Proceeds from Issuance or Sale of Equity, Total</label>

    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="lab_us-gaap_ProceedsFromIssuanceOrSaleOfEquity" xml:lang="en-US">Proceeds from issuance of shares and warrants, net</label>

    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_ProceedsFromIssuanceOrSaleOfEquity" xlink:to="lab_us-gaap_ProceedsFromIssuanceOrSaleOfEquity" />

    <loc xlink:type="locator" xlink:href="mdgn-20140930.xsd#mdgn_ProceedsFromExerciseOfOptionsAndWarrants" xlink:label="loc_mdgn_ProceedsFromExerciseOfOptionsAndWarrants" />

    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_mdgn_ProceedsFromExerciseOfOptionsAndWarrants" xml:lang="en-US">Proceeds From Exercise Of Options and Warrants</label>

    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="lab_mdgn_ProceedsFromExerciseOfOptionsAndWarrants" xml:lang="en-US">Proceeds from exercise of options and warrants, net</label>

    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="lab_mdgn_ProceedsFromExerciseOfOptionsAndWarrants" xml:lang="en-US">The cash inflow associated with the amount received from holders exercising their stock options and warrants.</label>

    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_mdgn_ProceedsFromExerciseOfOptionsAndWarrants" xlink:to="lab_mdgn_ProceedsFromExerciseOfOptionsAndWarrants" />

    <loc xlink:type="locator" xlink:href="mdgn-20140930.xsd#mdgn_PaymentsOfIssuanceCosts" xlink:label="loc_mdgn_PaymentsOfIssuanceCosts" />

    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_mdgn_PaymentsOfIssuanceCosts" xml:lang="en-US">Payments Of Issuance Costs</label>

    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2009/role/negatedLabel" xlink:label="lab_mdgn_PaymentsOfIssuanceCosts" xml:lang="en-US">Deferred costs</label>

    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="lab_mdgn_PaymentsOfIssuanceCosts" xml:lang="en-US">The cash outflow for issuance costs.</label>

    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_mdgn_PaymentsOfIssuanceCosts" xlink:to="lab_mdgn_PaymentsOfIssuanceCosts" />

    <loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2014/elts/us-gaap-2014-01-31.xsd#us-gaap_CashAndCashEquivalentsPeriodIncreaseDecrease" xlink:label="loc_us-gaap_CashAndCashEquivalentsPeriodIncreaseDecrease" />

    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_us-gaap_CashAndCashEquivalentsPeriodIncreaseDecrease" xml:lang="en-US">Cash and Cash Equivalents, Period Increase (Decrease)</label>

    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/totalLabel" xlink:label="lab_us-gaap_CashAndCashEquivalentsPeriodIncreaseDecrease" xml:lang="en-US">Increase (decrease) in cash and cash equivalents</label>

    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_CashAndCashEquivalentsPeriodIncreaseDecrease" xlink:to="lab_us-gaap_CashAndCashEquivalentsPeriodIncreaseDecrease" />

    <loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2014/elts/us-gaap-2014-01-31.xsd#us-gaap_SupplementalCashFlowInformationAbstract" xlink:label="loc_us-gaap_SupplementalCashFlowInformationAbstract" />

    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_us-gaap_SupplementalCashFlowInformationAbstract" xml:lang="en-US">Supplemental Cash Flow Information [Abstract]</label>

    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="lab_us-gaap_SupplementalCashFlowInformationAbstract" xml:lang="en-US">Supplemental disclosure of cash flow information:</label>

    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_SupplementalCashFlowInformationAbstract" xlink:to="lab_us-gaap_SupplementalCashFlowInformationAbstract" />

    <loc xlink:type="locator" xlink:href="mdgn-20140930.xsd#mdgn_CashPaidAbstract" xlink:label="loc_mdgn_CashPaidAbstract" />

    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_mdgn_CashPaidAbstract" xml:lang="en-US">Cash Paid [Abstract]</label>

    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="lab_mdgn_CashPaidAbstract" xml:lang="en-US">Cash paid during the period for:</label>

    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_mdgn_CashPaidAbstract" xlink:to="lab_mdgn_CashPaidAbstract" />

    <loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2014/elts/us-gaap-2014-01-31.xsd#us-gaap_IncomeTaxesPaid" xlink:label="loc_us-gaap_IncomeTaxesPaid" />

    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_us-gaap_IncomeTaxesPaid" xml:lang="en-US">Income Taxes Paid</label>

    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="lab_us-gaap_IncomeTaxesPaid" xml:lang="en-US">Cash paid during the period for taxes</label>

    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_IncomeTaxesPaid" xlink:to="lab_us-gaap_IncomeTaxesPaid" />

    <loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2014/elts/us-gaap-2014-01-31.xsd#us-gaap_CashFlowNoncashInvestingAndFinancingActivitiesDisclosureAbstract" xlink:label="loc_us-gaap_CashFlowNoncashInvestingAndFinancingActivitiesDisclosureAbstract" />

    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_us-gaap_CashFlowNoncashInvestingAndFinancingActivitiesDisclosureAbstract" xml:lang="en-US">Cash Flow, Noncash Investing and Financing Activities Disclosure [Abstract]</label>

    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="lab_us-gaap_CashFlowNoncashInvestingAndFinancingActivitiesDisclosureAbstract" xml:lang="en-US">Supplemental disclosure of non-cash flow information:</label>

    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_CashFlowNoncashInvestingAndFinancingActivitiesDisclosureAbstract" xlink:to="lab_us-gaap_CashFlowNoncashInvestingAndFinancingActivitiesDisclosureAbstract" />

    <loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2014/elts/us-gaap-2014-01-31.xsd#us-gaap_OrganizationConsolidationAndPresentationOfFinancialStatementsDisclosureTextBlock" xlink:label="loc_us-gaap_OrganizationConsolidationAndPresentationOfFinancialStatementsDisclosureTextBlock" />

    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_us-gaap_OrganizationConsolidationAndPresentationOfFinancialStatementsDisclosureTextBlock" xml:lang="en-US">Organization, Consolidation and Presentation Of Financial Statements Disclosure [Text Block]</label>

    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="lab_us-gaap_OrganizationConsolidationAndPresentationOfFinancialStatementsDisclosureTextBlock" xml:lang="en-US">Organization, Consolidation and Presentation of Financial Statements Disclosure [Text Block]</label>

    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_OrganizationConsolidationAndPresentationOfFinancialStatementsDisclosureTextBlock" xlink:to="lab_us-gaap_OrganizationConsolidationAndPresentationOfFinancialStatementsDisclosureTextBlock" />

    <loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2014/elts/us-gaap-2014-01-31.xsd#us-gaap_SignificantAccountingPoliciesTextBlock" xlink:label="loc_us-gaap_SignificantAccountingPoliciesTextBlock" />

    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_us-gaap_SignificantAccountingPoliciesTextBlock" xml:lang="en-US">Significant Accounting Policies [Text Block]</label>

    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="lab_us-gaap_SignificantAccountingPoliciesTextBlock" xml:lang="en-US">Significant Accounting Policies [Text Block]</label>

    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_SignificantAccountingPoliciesTextBlock" xlink:to="lab_us-gaap_SignificantAccountingPoliciesTextBlock" />

    <loc xlink:type="locator" xlink:href="mdgn-20140930.xsd#mdgn_DocumentAndEntityInformationAbstract" xlink:label="loc_mdgn_DocumentAndEntityInformationAbstract" />

    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_mdgn_DocumentAndEntityInformationAbstract" xml:lang="en-US">Document And Entity Information [Abstract]</label>

    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_mdgn_DocumentAndEntityInformationAbstract" xlink:to="lab_mdgn_DocumentAndEntityInformationAbstract" />

    <loc xlink:type="locator" xlink:href="http://xbrl.sec.gov/dei/2014/dei-2014-01-31.xsd#dei_DocumentInformationTable" xlink:label="loc_dei_DocumentInformationTable" />

    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_dei_DocumentInformationTable" xml:lang="en-US">Document Information [Table]</label>

    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_dei_DocumentInformationTable" xlink:to="lab_dei_DocumentInformationTable" />

    <loc xlink:type="locator" xlink:href="http://xbrl.sec.gov/dei/2014/dei-2014-01-31.xsd#dei_EntityRegistrantName" xlink:label="loc_dei_EntityRegistrantName" />

    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_dei_EntityRegistrantName" xml:lang="en-US">Entity Registrant Name</label>

    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_dei_EntityRegistrantName" xlink:to="lab_dei_EntityRegistrantName" />

    <loc xlink:type="locator" xlink:href="http://xbrl.sec.gov/dei/2014/dei-2014-01-31.xsd#dei_EntityCentralIndexKey" xlink:label="loc_dei_EntityCentralIndexKey" />

    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_dei_EntityCentralIndexKey" xml:lang="en-US">Entity Central Index Key</label>

    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_dei_EntityCentralIndexKey" xlink:to="lab_dei_EntityCentralIndexKey" />

    <loc xlink:type="locator" xlink:href="http://xbrl.sec.gov/dei/2014/dei-2014-01-31.xsd#dei_CurrentFiscalYearEndDate" xlink:label="loc_dei_CurrentFiscalYearEndDate" />

    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_dei_CurrentFiscalYearEndDate" xml:lang="en-US">Current Fiscal Year End Date</label>

    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_dei_CurrentFiscalYearEndDate" xlink:to="lab_dei_CurrentFiscalYearEndDate" />

    <loc xlink:type="locator" xlink:href="http://xbrl.sec.gov/dei/2014/dei-2014-01-31.xsd#dei_EntityFilerCategory" xlink:label="loc_dei_EntityFilerCategory" />

    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_dei_EntityFilerCategory" xml:lang="en-US">Entity Filer Category</label>

    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_dei_EntityFilerCategory" xlink:to="lab_dei_EntityFilerCategory" />

    <loc xlink:type="locator" xlink:href="http://xbrl.sec.gov/dei/2014/dei-2014-01-31.xsd#dei_TradingSymbol" xlink:label="loc_dei_TradingSymbol" />

    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_dei_TradingSymbol" xml:lang="en-US">Trading Symbol</label>

    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_dei_TradingSymbol" xlink:to="lab_dei_TradingSymbol" />

    <loc xlink:type="locator" xlink:href="http://xbrl.sec.gov/dei/2014/dei-2014-01-31.xsd#dei_EntityCommonStockSharesOutstanding" xlink:label="loc_dei_EntityCommonStockSharesOutstanding" />

    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_dei_EntityCommonStockSharesOutstanding" xml:lang="en-US">Entity Common Stock, Shares Outstanding</label>

    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_dei_EntityCommonStockSharesOutstanding" xlink:to="lab_dei_EntityCommonStockSharesOutstanding" />

    <loc xlink:type="locator" xlink:href="http://xbrl.sec.gov/dei/2014/dei-2014-01-31.xsd#dei_DocumentType" xlink:label="loc_dei_DocumentType" />

    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_dei_DocumentType" xml:lang="en-US">Document Type</label>

    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_dei_DocumentType" xlink:to="lab_dei_DocumentType" />

    <loc xlink:type="locator" xlink:href="http://xbrl.sec.gov/dei/2014/dei-2014-01-31.xsd#dei_AmendmentFlag" xlink:label="loc_dei_AmendmentFlag" />

    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_dei_AmendmentFlag" xml:lang="en-US">Amendment Flag</label>

    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_dei_AmendmentFlag" xlink:to="lab_dei_AmendmentFlag" />

    <loc xlink:type="locator" xlink:href="http://xbrl.sec.gov/dei/2014/dei-2014-01-31.xsd#dei_DocumentPeriodEndDate" xlink:label="loc_dei_DocumentPeriodEndDate" />

    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_dei_DocumentPeriodEndDate" xml:lang="en-US">Document Period End Date</label>

    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_dei_DocumentPeriodEndDate" xlink:to="lab_dei_DocumentPeriodEndDate" />

    <loc xlink:type="locator" xlink:href="http://xbrl.sec.gov/dei/2014/dei-2014-01-31.xsd#dei_DocumentFiscalPeriodFocus" xlink:label="loc_dei_DocumentFiscalPeriodFocus" />

    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_dei_DocumentFiscalPeriodFocus" xml:lang="en-US">Document Fiscal Period Focus</label>

    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_dei_DocumentFiscalPeriodFocus" xlink:to="lab_dei_DocumentFiscalPeriodFocus" />

    <loc xlink:type="locator" xlink:href="http://xbrl.sec.gov/dei/2014/dei-2014-01-31.xsd#dei_DocumentFiscalYearFocus" xlink:label="loc_dei_DocumentFiscalYearFocus" />

    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_dei_DocumentFiscalYearFocus" xml:lang="en-US">Document Fiscal Year Focus</label>

    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_dei_DocumentFiscalYearFocus" xlink:to="lab_dei_DocumentFiscalYearFocus" />

    <loc xlink:type="locator" xlink:href="mdgn-20140930.xsd#mdgn_DeferredCost" xlink:label="loc_mdgn_DeferredCost" />

    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_mdgn_DeferredCost" xml:lang="en-US">Deferred Cost</label>

    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="lab_mdgn_DeferredCost" xml:lang="en-US">Deferred costs</label>

    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="lab_mdgn_DeferredCost" xml:lang="en-US">Sum of the carrying amounts of deferred costs that are expected to be capitalized.</label>

    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_mdgn_DeferredCost" xlink:to="lab_mdgn_DeferredCost" />

    <loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2014/elts/us-gaap-2014-01-31.xsd#us-gaap_NetCashProvidedByUsedInFinancingActivitiesContinuingOperations" xlink:label="loc_us-gaap_NetCashProvidedByUsedInFinancingActivitiesContinuingOperations" />

    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_us-gaap_NetCashProvidedByUsedInFinancingActivitiesContinuingOperations" xml:lang="en-US">Net Cash Provided by (Used in) Financing Activities, Continuing Operations, Total</label>

    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/totalLabel" xlink:label="lab_us-gaap_NetCashProvidedByUsedInFinancingActivitiesContinuingOperations" xml:lang="en-US">Net cash provided by financing activities</label>

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    <loc xlink:type="locator" xlink:href="http://xbrl.sec.gov/dei/2014/dei-2014-01-31.xsd#dei_DocumentInformationLineItems" xlink:label="loc_dei_DocumentInformationLineItems" />

    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_dei_DocumentInformationLineItems" xml:lang="en-US">Document Information [Line Items]</label>

    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_dei_DocumentInformationLineItems" xlink:to="lab_dei_DocumentInformationLineItems" />

    <loc xlink:type="locator" xlink:href="mdgn-20140930.xsd#mdgn_LicenseMaintenanceFees" xlink:label="loc_mdgn_LicenseMaintenanceFees" />

    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_mdgn_LicenseMaintenanceFees" xml:lang="en-US">License Maintenance Fees</label>

    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="lab_mdgn_LicenseMaintenanceFees" xml:lang="en-US">Costs incurred and to be incurred, related to license maintenance.</label>

    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_mdgn_LicenseMaintenanceFees" xlink:to="lab_mdgn_LicenseMaintenanceFees" />

    <loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2014/elts/us-gaap-2014-01-31.xsd#us-gaap_AssetsNoncurrent" xlink:label="loc_us-gaap_AssetsNoncurrent" />

    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_us-gaap_AssetsNoncurrent" xml:lang="en-US">Assets, Noncurrent, Total</label>

    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/totalLabel" xlink:label="lab_us-gaap_AssetsNoncurrent" xml:lang="en-US">Total long-term assets</label>

    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_AssetsNoncurrent" xlink:to="lab_us-gaap_AssetsNoncurrent" />
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