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    <link:label id="lab_ango_OperatingLeasesFutureMinimumPaymentsDueAfterFourYears_8E757C2CB31E26E5D6DB00E0AD249CB2_documentation_en-US" xlink:label="lab_ango_OperatingLeasesFutureMinimumPaymentsDueAfterFourYears_8E757C2CB31E26E5D6DB00E0AD249CB2" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">Operating leases future minimum payments due after four years.</link:label>
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    <link:label id="lab_us-gaap_OperatingLeasesFutureMinimumPaymentsDue_05FB52AA9F35C35333DC00E0AD249F66_totalLabel_en-US" xlink:label="lab_us-gaap_OperatingLeasesFutureMinimumPaymentsDue_05FB52AA9F35C35333DC00E0AD249F66" xlink:role="http://www.xbrl.org/2003/role/totalLabel" xlink:type="resource" xml:lang="en-US">Total</link:label>
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    <link:label id="lab_us-gaap_ScheduleOfBusinessAcquisitionsByAcquisitionTextBlock_B0714445777E83EAC5B000564D3F1D53_label_en-US" xlink:label="lab_us-gaap_ScheduleOfBusinessAcquisitionsByAcquisitionTextBlock_B0714445777E83EAC5B000564D3F1D53" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Schedule of Business Acquisitions, by Acquisition [Table Text Block]</link:label>
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    <link:label id="lab_us-gaap_RevenueFromContractWithCustomerTextBlock_82DF914466B2BDCA1FEA055FEEAB4863_terseLabel_en-US" xlink:label="lab_us-gaap_RevenueFromContractWithCustomerTextBlock_82DF914466B2BDCA1FEA055FEEAB4863" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">REVENUE FROM CONTRACTS WITH CUSTOMERS</link:label>
    <link:label id="lab_us-gaap_RevenueFromContractWithCustomerTextBlock_82DF914466B2BDCA1FEA055FEEAB4863_label_en-US" xlink:label="lab_us-gaap_RevenueFromContractWithCustomerTextBlock_82DF914466B2BDCA1FEA055FEEAB4863" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Revenue from Contract with Customer [Text Block]</link:label>
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    <link:label id="lab_us-gaap_StatementOfCashFlowsAbstract_92732F4AC5BD5725748A2459E47381C7_label_en-US" xlink:label="lab_us-gaap_StatementOfCashFlowsAbstract_92732F4AC5BD5725748A2459E47381C7" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Statement of Cash Flows [Abstract]</link:label>
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    <link:label id="lab_us-gaap_NetCashProvidedByUsedInOperatingActivitiesAbstract_6FE5934A4E5390B49A6B2459E4737677_verboseLabel_en-US" xlink:label="lab_us-gaap_NetCashProvidedByUsedInOperatingActivitiesAbstract_6FE5934A4E5390B49A6B2459E4737677" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:type="resource" xml:lang="en-US">Cash flows from operating activities:</link:label>
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    <link:label id="lab_us-gaap_DepreciationAndAmortization_C0511369ACB9DA97121D2459E47417B2_verboseLabel_en-US" xlink:label="lab_us-gaap_DepreciationAndAmortization_C0511369ACB9DA97121D2459E47417B2" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:type="resource" xml:lang="en-US">Depreciation and amortization</link:label>
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    <link:label id="lab_us-gaap_ShareBasedCompensation_D712415CD4942BD224512459E4749FB7_label_en-US" xlink:label="lab_us-gaap_ShareBasedCompensation_D712415CD4942BD224512459E4749FB7" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Share-based Compensation</link:label>
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    <link:label id="lab_us-gaap_GainLossOnSaleOfBusiness_774088C471A25EFE252C2459E4745F55_negatedTerseLabel_en-US" xlink:label="lab_us-gaap_GainLossOnSaleOfBusiness_774088C471A25EFE252C2459E4745F55" xlink:role="http://www.xbrl.org/2009/role/negatedTerseLabel" xlink:type="resource" xml:lang="en-US">Gain on disposition</link:label>
    <link:label id="lab_us-gaap_GainLossOnSaleOfBusiness_774088C471A25EFE252C2459E4745F55_label_en-US" xlink:label="lab_us-gaap_GainLossOnSaleOfBusiness_774088C471A25EFE252C2459E4745F55" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Gain (Loss) on Disposition of Business</link:label>
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    <link:label id="lab_ango_ChangeInFairValueOfContingentConsideration_CB3FA23F73D8F9FD6E9A2459E475EC01_verboseLabel_en-US" xlink:label="lab_ango_ChangeInFairValueOfContingentConsideration_CB3FA23F73D8F9FD6E9A2459E475EC01" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:type="resource" xml:lang="en-US">Change in fair value of contingent consideration</link:label>
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    <link:label id="lab_ango_DeferredIncomeTaxRelatedToOperatingActivity_BD89DF6047400B5647762459E4758151_verboseLabel_en-US" xlink:label="lab_ango_DeferredIncomeTaxRelatedToOperatingActivity_BD89DF6047400B5647762459E4758151" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:type="resource" xml:lang="en-US">Deferred income tax provision</link:label>
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    <link:label id="lab_us-gaap_ForeignCurrencyTransactionGainLossUnrealized_7FF597E052F4D3F9F0632459E475AE06_label_en-US" xlink:label="lab_us-gaap_ForeignCurrencyTransactionGainLossUnrealized_7FF597E052F4D3F9F0632459E475AE06" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Foreign Currency Transaction Gain (Loss), Unrealized</link:label>
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    <link:label id="lab_us-gaap_OtherNoncashIncomeExpense_E8605F7B4BD05F5D991F2459E4759E55_negatedLabel_en-US" xlink:label="lab_us-gaap_OtherNoncashIncomeExpense_E8605F7B4BD05F5D991F2459E4759E55" xlink:role="http://www.xbrl.org/2009/role/negatedLabel" xlink:type="resource" xml:lang="en-US">Other</link:label>
    <link:label id="lab_us-gaap_OtherNoncashIncomeExpense_E8605F7B4BD05F5D991F2459E4759E55_label_en-US" xlink:label="lab_us-gaap_OtherNoncashIncomeExpense_E8605F7B4BD05F5D991F2459E4759E55" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Other Noncash Income (Expense)</link:label>
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    <link:label id="lab_us-gaap_IncreaseDecreaseInOperatingCapitalAbstract_D469424767C81BC338BB2459E476FE17_verboseLabel_en-US" xlink:label="lab_us-gaap_IncreaseDecreaseInOperatingCapitalAbstract_D469424767C81BC338BB2459E476FE17" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:type="resource" xml:lang="en-US">Changes in operating assets and liabilities:</link:label>
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    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_IncreaseDecreaseInOperatingCapitalAbstract" xlink:label="loc_us-gaap_IncreaseDecreaseInOperatingCapitalAbstract_D469424767C81BC338BB2459E476FE17" xlink:type="locator" />
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    <link:label id="lab_us-gaap_IncreaseDecreaseInAccountsReceivable_97D1DFC81A2F095270CC2459E47629EC_negatedLabel_en-US" xlink:label="lab_us-gaap_IncreaseDecreaseInAccountsReceivable_97D1DFC81A2F095270CC2459E47629EC" xlink:role="http://www.xbrl.org/2009/role/negatedLabel" xlink:type="resource" xml:lang="en-US">Accounts receivable</link:label>
    <link:label id="lab_us-gaap_IncreaseDecreaseInAccountsReceivable_97D1DFC81A2F095270CC2459E47629EC_label_en-US" xlink:label="lab_us-gaap_IncreaseDecreaseInAccountsReceivable_97D1DFC81A2F095270CC2459E47629EC" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Increase (Decrease) in Accounts Receivable</link:label>
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    <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_IncreaseDecreaseInAccountsReceivable_97D1DFC81A2F095270CC2459E47629EC" xlink:to="lab_us-gaap_IncreaseDecreaseInAccountsReceivable_97D1DFC81A2F095270CC2459E47629EC" xlink:type="arc" />
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    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_IncreaseDecreaseInInventories" xlink:label="loc_us-gaap_IncreaseDecreaseInInventories_F1AF2CA4E051F5B24FA02459E476306A" xlink:type="locator" />
    <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_IncreaseDecreaseInInventories_F1AF2CA4E051F5B24FA02459E476306A" xlink:to="lab_us-gaap_IncreaseDecreaseInInventories_F1AF2CA4E051F5B24FA02459E476306A" xlink:type="arc" />
    <link:label id="lab_us-gaap_IncreaseDecreaseInPrepaidDeferredExpenseAndOtherAssets_0DC21723382DBCB0B2532459E47616B0_negatedLabel_en-US" xlink:label="lab_us-gaap_IncreaseDecreaseInPrepaidDeferredExpenseAndOtherAssets_0DC21723382DBCB0B2532459E47616B0" xlink:role="http://www.xbrl.org/2009/role/negatedLabel" xlink:type="resource" xml:lang="en-US">Prepaid expenses and other</link:label>
    <link:label id="lab_us-gaap_IncreaseDecreaseInPrepaidDeferredExpenseAndOtherAssets_0DC21723382DBCB0B2532459E47616B0_label_en-US" xlink:label="lab_us-gaap_IncreaseDecreaseInPrepaidDeferredExpenseAndOtherAssets_0DC21723382DBCB0B2532459E47616B0" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Increase (Decrease) in Prepaid Expense and Other Assets</link:label>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_IncreaseDecreaseInPrepaidDeferredExpenseAndOtherAssets" xlink:label="loc_us-gaap_IncreaseDecreaseInPrepaidDeferredExpenseAndOtherAssets_0DC21723382DBCB0B2532459E47616B0" xlink:type="locator" />
    <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_IncreaseDecreaseInPrepaidDeferredExpenseAndOtherAssets_0DC21723382DBCB0B2532459E47616B0" xlink:to="lab_us-gaap_IncreaseDecreaseInPrepaidDeferredExpenseAndOtherAssets_0DC21723382DBCB0B2532459E47616B0" xlink:type="arc" />
    <link:label id="lab_us-gaap_IncreaseDecreaseInAccountsPayableAndAccruedLiabilities_BD73C029E0ABDD64DD832459E476C206_terseLabel_en-US" xlink:label="lab_us-gaap_IncreaseDecreaseInAccountsPayableAndAccruedLiabilities_BD73C029E0ABDD64DD832459E476C206" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Accounts payable, accrued and other liabilities</link:label>
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    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_IncreaseDecreaseInAccountsPayableAndAccruedLiabilities" xlink:label="loc_us-gaap_IncreaseDecreaseInAccountsPayableAndAccruedLiabilities_BD73C029E0ABDD64DD832459E476C206" xlink:type="locator" />
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    <link:label id="lab_us-gaap_NetCashProvidedByUsedInOperatingActivities_44A5BC48956EB177C3742459E476D52B_totalLabel_en-US" xlink:label="lab_us-gaap_NetCashProvidedByUsedInOperatingActivities_44A5BC48956EB177C3742459E476D52B" xlink:role="http://www.xbrl.org/2003/role/totalLabel" xlink:type="resource" xml:lang="en-US">Net cash provided by operating activities</link:label>
    <link:label id="lab_us-gaap_NetCashProvidedByUsedInOperatingActivities_44A5BC48956EB177C3742459E476D52B_label_en-US" xlink:label="lab_us-gaap_NetCashProvidedByUsedInOperatingActivities_44A5BC48956EB177C3742459E476D52B" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Net Cash Provided by (Used in) Operating Activities</link:label>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_NetCashProvidedByUsedInOperatingActivities" xlink:label="loc_us-gaap_NetCashProvidedByUsedInOperatingActivities_44A5BC48956EB177C3742459E476D52B" xlink:type="locator" />
    <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_NetCashProvidedByUsedInOperatingActivities_44A5BC48956EB177C3742459E476D52B" xlink:to="lab_us-gaap_NetCashProvidedByUsedInOperatingActivities_44A5BC48956EB177C3742459E476D52B" xlink:type="arc" />
    <link:label id="lab_us-gaap_NetCashProvidedByUsedInInvestingActivitiesAbstract_E417D99B471CF9437A9C2459E477724B_verboseLabel_en-US" xlink:label="lab_us-gaap_NetCashProvidedByUsedInInvestingActivitiesAbstract_E417D99B471CF9437A9C2459E477724B" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:type="resource" xml:lang="en-US">Cash flows from investing activities:</link:label>
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    <link:label id="lab_us-gaap_PaymentsToAcquirePropertyPlantAndEquipment_9C620B81DD22E8B1DFA22459E477351F_negatedLabel_en-US" xlink:label="lab_us-gaap_PaymentsToAcquirePropertyPlantAndEquipment_9C620B81DD22E8B1DFA22459E477351F" xlink:role="http://www.xbrl.org/2009/role/negatedLabel" xlink:type="resource" xml:lang="en-US">Additions to property, plant and equipment</link:label>
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    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_PaymentsToAcquirePropertyPlantAndEquipment" xlink:label="loc_us-gaap_PaymentsToAcquirePropertyPlantAndEquipment_9C620B81DD22E8B1DFA22459E477351F" xlink:type="locator" />
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    <link:label id="lab_us-gaap_ProceedsFromDivestitureOfBusinesses_F6B9B219C6F77620A63F2459E477205E_terseLabel_en-US" xlink:label="lab_us-gaap_ProceedsFromDivestitureOfBusinesses_F6B9B219C6F77620A63F2459E477205E" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Proceeds from disposition of discontinued operations</link:label>
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    <link:label id="lab_ango_PaymentsToAcquireIntangibleAssetsNetOfCashAcquired_EE6A1C73E039170FF3DE2459E4784D31_negatedLabel_en-US" xlink:label="lab_ango_PaymentsToAcquireIntangibleAssetsNetOfCashAcquired_EE6A1C73E039170FF3DE2459E4784D31" xlink:role="http://www.xbrl.org/2009/role/negatedLabel" xlink:type="resource" xml:lang="en-US">Acquisition of intangibles</link:label>
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    <link:label id="lab_us-gaap_IncomeTaxesPaidNet_D28F287FC4AE6C65E6AD2459E47BBC60_terseLabel_en-US" xlink:label="lab_us-gaap_IncomeTaxesPaidNet_D28F287FC4AE6C65E6AD2459E47BBC60" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Income taxes</link:label>
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    <link:label id="lab_us-gaap_FiniteLivedIntangibleAssetsFutureAmortizationExpenseAbstract_8128B9BEF501BF4A5F5B00E0AEA1DB99_verboseLabel_en-US" xlink:label="lab_us-gaap_FiniteLivedIntangibleAssetsFutureAmortizationExpenseAbstract_8128B9BEF501BF4A5F5B00E0AEA1DB99" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:type="resource" xml:lang="en-US">Expected amortization expense</link:label>
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    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_FiniteLivedIntangibleAssetsFutureAmortizationExpenseAbstract" xlink:label="loc_us-gaap_FiniteLivedIntangibleAssetsFutureAmortizationExpenseAbstract_8128B9BEF501BF4A5F5B00E0AEA1DB99" xlink:type="locator" />
    <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_FiniteLivedIntangibleAssetsFutureAmortizationExpenseAbstract_8128B9BEF501BF4A5F5B00E0AEA1DB99" xlink:to="lab_us-gaap_FiniteLivedIntangibleAssetsFutureAmortizationExpenseAbstract_8128B9BEF501BF4A5F5B00E0AEA1DB99" xlink:type="arc" />
    <link:label id="lab_us-gaap_FiniteLivedIntangibleAssetsAmortizationExpenseNextTwelveMonths_83025BE3B89A5129C22500E0AEA2ABAF_verboseLabel_en-US" xlink:label="lab_us-gaap_FiniteLivedIntangibleAssetsAmortizationExpenseNextTwelveMonths_83025BE3B89A5129C22500E0AEA2ABAF" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:type="resource" xml:lang="en-US">2020</link:label>
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    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_FiniteLivedIntangibleAssetsAmortizationExpenseNextTwelveMonths" xlink:label="loc_us-gaap_FiniteLivedIntangibleAssetsAmortizationExpenseNextTwelveMonths_83025BE3B89A5129C22500E0AEA2ABAF" xlink:type="locator" />
    <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_FiniteLivedIntangibleAssetsAmortizationExpenseNextTwelveMonths_83025BE3B89A5129C22500E0AEA2ABAF" xlink:to="lab_us-gaap_FiniteLivedIntangibleAssetsAmortizationExpenseNextTwelveMonths_83025BE3B89A5129C22500E0AEA2ABAF" xlink:type="arc" />
    <link:label id="lab_us-gaap_FiniteLivedIntangibleAssetsAmortizationExpenseYearTwo_EB0E64B0F5099BB5FD3000E0AEA28B6A_verboseLabel_en-US" xlink:label="lab_us-gaap_FiniteLivedIntangibleAssetsAmortizationExpenseYearTwo_EB0E64B0F5099BB5FD3000E0AEA28B6A" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:type="resource" xml:lang="en-US">2021</link:label>
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    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_FiniteLivedIntangibleAssetsAmortizationExpenseYearTwo" xlink:label="loc_us-gaap_FiniteLivedIntangibleAssetsAmortizationExpenseYearTwo_EB0E64B0F5099BB5FD3000E0AEA28B6A" xlink:type="locator" />
    <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_FiniteLivedIntangibleAssetsAmortizationExpenseYearTwo_EB0E64B0F5099BB5FD3000E0AEA28B6A" xlink:to="lab_us-gaap_FiniteLivedIntangibleAssetsAmortizationExpenseYearTwo_EB0E64B0F5099BB5FD3000E0AEA28B6A" xlink:type="arc" />
    <link:label id="lab_us-gaap_FiniteLivedIntangibleAssetsAmortizationExpenseYearThree_7E3A7C42BC46E40105CC00E0AEA2A683_verboseLabel_en-US" xlink:label="lab_us-gaap_FiniteLivedIntangibleAssetsAmortizationExpenseYearThree_7E3A7C42BC46E40105CC00E0AEA2A683" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:type="resource" xml:lang="en-US">2022</link:label>
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    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_FiniteLivedIntangibleAssetsAmortizationExpenseYearThree" xlink:label="loc_us-gaap_FiniteLivedIntangibleAssetsAmortizationExpenseYearThree_7E3A7C42BC46E40105CC00E0AEA2A683" xlink:type="locator" />
    <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_FiniteLivedIntangibleAssetsAmortizationExpenseYearThree_7E3A7C42BC46E40105CC00E0AEA2A683" xlink:to="lab_us-gaap_FiniteLivedIntangibleAssetsAmortizationExpenseYearThree_7E3A7C42BC46E40105CC00E0AEA2A683" xlink:type="arc" />
    <link:label id="lab_us-gaap_FiniteLivedIntangibleAssetsAmortizationExpenseYearFour_3B097DD0135D5D963AA800E0AEA28585_verboseLabel_en-US" xlink:label="lab_us-gaap_FiniteLivedIntangibleAssetsAmortizationExpenseYearFour_3B097DD0135D5D963AA800E0AEA28585" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:type="resource" xml:lang="en-US">2023</link:label>
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    <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_FiniteLivedIntangibleAssetsAmortizationExpenseYearFour_3B097DD0135D5D963AA800E0AEA28585" xlink:to="lab_us-gaap_FiniteLivedIntangibleAssetsAmortizationExpenseYearFour_3B097DD0135D5D963AA800E0AEA28585" xlink:type="arc" />
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    <link:label id="lab_us-gaap_SharebasedCompensationArrangementBySharebasedPaymentAwardOptionsExercisableIntrinsicValue1_B803A62478A7DDEEBAEF949FCC262331_label_en-US" xlink:label="lab_us-gaap_SharebasedCompensationArrangementBySharebasedPaymentAwardOptionsExercisableIntrinsicValue1_AA2DD028ED3650548EB228ED98186098" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Share-based Compensation Arrangement by Share-based Payment Award, Options, Exercisable, Intrinsic Value</link:label>
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    <link:label id="lab_ango_InventoryTypeAxis_571ED3B1A30798F42A8D00E0AF011A9F_terseLabel_en-US" xlink:label="lab_ango_InventoryTypeAxis_571ED3B1A30798F42A8D00E0AF011A9F" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Inventory Type [Axis]</link:label>
    <link:label id="lab_ango_InventoryTypeAxis_571ED3B1A30798F42A8D00E0AF011A9F_label_en-US" xlink:label="lab_ango_InventoryTypeAxis_571ED3B1A30798F42A8D00E0AF011A9F" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Inventory Type [Axis]</link:label>
    <link:label id="lab_ango_InventoryTypeAxis_571ED3B1A30798F42A8D00E0AF011A9F_documentation_en-US" xlink:label="lab_ango_InventoryTypeAxis_571ED3B1A30798F42A8D00E0AF011A9F" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">Inventory Type [Axis]</link:label>
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    <link:label id="lab_ango_InventoryTypeDomain_C16F7A8B00B16498202000E0AF01AD9A_terseLabel_en-US" xlink:label="lab_ango_InventoryTypeDomain_C16F7A8B00B16498202000E0AF01AD9A" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Inventory Type [Domain]</link:label>
    <link:label id="lab_ango_InventoryTypeDomain_C16F7A8B00B16498202000E0AF01AD9A_label_en-US" xlink:label="lab_ango_InventoryTypeDomain_C16F7A8B00B16498202000E0AF01AD9A" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Inventory Type [Domain]</link:label>
    <link:label id="lab_ango_InventoryTypeDomain_C16F7A8B00B16498202000E0AF01AD9A_documentation_en-US" xlink:label="lab_ango_InventoryTypeDomain_C16F7A8B00B16498202000E0AF01AD9A" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">[Domain] for Inventory Type [Axis]</link:label>
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    <link:label id="lab_ango_AcculisInventoryMember_21D5B3F011E38895ECF400E0AF0167AB_label_en-US" xlink:label="lab_ango_AcculisInventoryMember_21D5B3F011E38895ECF400E0AF0167AB" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Acculis Inventory [Member]</link:label>
    <link:label id="lab_ango_AcculisInventoryMember_21D5B3F011E38895ECF400E0AF0167AB_documentation_en-US" xlink:label="lab_ango_AcculisInventoryMember_21D5B3F011E38895ECF400E0AF0167AB" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">Acculis Inventory [Member]</link:label>
    <link:loc xlink:href="ango-20190531.xsd#ango_AcculisInventoryMember" xlink:label="loc_ango_AcculisInventoryMember_21D5B3F011E38895ECF400E0AF0167AB" xlink:type="locator" />
    <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ango_AcculisInventoryMember_21D5B3F011E38895ECF400E0AF0167AB" xlink:to="lab_ango_AcculisInventoryMember_21D5B3F011E38895ECF400E0AF0167AB" xlink:type="arc" />
    <link:label id="lab_ango_UndisclosedInventoryDistributorMember_C02893B9A95848E6925800E0AF0276FC_terseLabel_en-US" xlink:label="lab_ango_UndisclosedInventoryDistributorMember_C02893B9A95848E6925800E0AF0276FC" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Japanese inventory distributor</link:label>
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    <link:loc xlink:href="ango-20190531.xsd#ango_UndisclosedInventoryDistributorMember" xlink:label="loc_ango_UndisclosedInventoryDistributorMember_C02893B9A95848E6925800E0AF0276FC" xlink:type="locator" />
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    <link:label id="lab_us-gaap_InventoryLineItems_6742E44899AEDB89368E00E0AF093CAF_label_en-US" xlink:label="lab_us-gaap_InventoryLineItems_6742E44899AEDB89368E00E0AF093CAF" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Inventory [Line Items]</link:label>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_InventoryLineItems" xlink:label="loc_us-gaap_InventoryLineItems_6742E44899AEDB89368E00E0AF093CAF" xlink:type="locator" />
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    <link:label id="lab_us-gaap_InventoryNetAbstract_2AC58542B6583C4496D200E0AEFF3053_label_en-US" xlink:label="lab_us-gaap_InventoryNetAbstract_2AC58542B6583C4496D200E0AEFF3053" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Inventory, Net [Abstract]</link:label>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_InventoryNetAbstract" xlink:label="loc_us-gaap_InventoryNetAbstract_2AC58542B6583C4496D200E0AEFF3053" xlink:type="locator" />
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    <link:label id="lab_us-gaap_InventoryRawMaterials_0C1F0CF3C4E2AF3F418A00E0AF00075A_label_en-US" xlink:label="lab_us-gaap_InventoryRawMaterials_0C1F0CF3C4E2AF3F418A00E0AF00075A" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Inventory, Raw Materials, Gross</link:label>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_InventoryRawMaterials" xlink:label="loc_us-gaap_InventoryRawMaterials_0C1F0CF3C4E2AF3F418A00E0AF00075A" xlink:type="locator" />
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    <link:label id="lab_ango_OarTracTrademarkMember_71C3C7C86D2ED40B5F400061C89ADFD1_terseLabel_en-US" xlink:label="lab_ango_OarTracTrademarkMember_71C3C7C86D2ED40B5F400061C89ADFD1" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">OarTrac Trademark</link:label>
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    <link:label id="lab_us-gaap_EntityWideInformationRevenueFromExternalCustomerLineItems_5FD792BD5450C78D47411A8C35BD4436_label_en-US" xlink:label="lab_us-gaap_EntityWideInformationRevenueFromExternalCustomerLineItems_5FD792BD5450C78D47411A8C35BD4436" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Revenue from External Customer [Line Items]</link:label>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_EntityWideInformationRevenueFromExternalCustomerLineItems" xlink:label="loc_us-gaap_EntityWideInformationRevenueFromExternalCustomerLineItems_5FD792BD5450C78D47411A8C35BD4436" xlink:type="locator" />
    <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_EntityWideInformationRevenueFromExternalCustomerLineItems_5FD792BD5450C78D47411A8C35BD4436" xlink:to="lab_us-gaap_EntityWideInformationRevenueFromExternalCustomerLineItems_5FD792BD5450C78D47411A8C35BD4436" xlink:type="arc" />
    <link:label id="lab_ango_RevenuePerformanceObligationPaymentTerm_97232811B01156933EAA1A8C35BDEC2B_terseLabel_en-US" xlink:label="lab_ango_RevenuePerformanceObligationPaymentTerm_97232811B01156933EAA1A8C35BDEC2B" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Performance obligation payment term (days)</link:label>
    <link:label id="lab_ango_RevenuePerformanceObligationPaymentTerm_97232811B01156933EAA1A8C35BDEC2B_label_en-US" xlink:label="lab_ango_RevenuePerformanceObligationPaymentTerm_97232811B01156933EAA1A8C35BDEC2B" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Revenue, Performance Obligation, Payment Term</link:label>
    <link:label id="lab_ango_RevenuePerformanceObligationPaymentTerm_97232811B01156933EAA1A8C35BDEC2B_documentation_en-US" xlink:label="lab_ango_RevenuePerformanceObligationPaymentTerm_97232811B01156933EAA1A8C35BDEC2B" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">Revenue, Performance Obligation, Payment Term</link:label>
    <link:loc xlink:href="ango-20190531.xsd#ango_RevenuePerformanceObligationPaymentTerm" xlink:label="loc_ango_RevenuePerformanceObligationPaymentTerm_97232811B01156933EAA1A8C35BDEC2B" xlink:type="locator" />
    <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ango_RevenuePerformanceObligationPaymentTerm_97232811B01156933EAA1A8C35BDEC2B" xlink:to="lab_ango_RevenuePerformanceObligationPaymentTerm_97232811B01156933EAA1A8C35BDEC2B" xlink:type="arc" />
    <link:label id="lab_ango_ContractwithCustomerRightofReturnProductReturnPeriodAfterPurchaseDateRequiringPreApproval_9E2C85690DB621A820001A8C35BE00BB_terseLabel_en-US" xlink:label="lab_ango_ContractwithCustomerRightofReturnProductReturnPeriodAfterPurchaseDateRequiringPreApproval_9E2C85690DB621A820001A8C35BE00BB" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Right of return period (days)</link:label>
    <link:label id="lab_ango_ContractwithCustomerRightofReturnProductReturnPeriodAfterPurchaseDateRequiringPreApproval_9E2C85690DB621A820001A8C35BE00BB_label_en-US" xlink:label="lab_ango_ContractwithCustomerRightofReturnProductReturnPeriodAfterPurchaseDateRequiringPreApproval_9E2C85690DB621A820001A8C35BE00BB" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Contract with Customer, Right of Return, Product Return Period After Purchase Date Requiring Pre-Approval</link:label>
    <link:label id="lab_ango_ContractwithCustomerRightofReturnProductReturnPeriodAfterPurchaseDateRequiringPreApproval_9E2C85690DB621A820001A8C35BE00BB_documentation_en-US" xlink:label="lab_ango_ContractwithCustomerRightofReturnProductReturnPeriodAfterPurchaseDateRequiringPreApproval_9E2C85690DB621A820001A8C35BE00BB" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">Contract with Customer, Right of Return, Product Return Period After Purchase Date Requiring Pre-Approval</link:label>
    <link:loc xlink:href="ango-20190531.xsd#ango_ContractwithCustomerRightofReturnProductReturnPeriodAfterPurchaseDateRequiringPreApproval" xlink:label="loc_ango_ContractwithCustomerRightofReturnProductReturnPeriodAfterPurchaseDateRequiringPreApproval_9E2C85690DB621A820001A8C35BE00BB" xlink:type="locator" />
    <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ango_ContractwithCustomerRightofReturnProductReturnPeriodAfterPurchaseDateRequiringPreApproval_9E2C85690DB621A820001A8C35BE00BB" xlink:to="lab_ango_ContractwithCustomerRightofReturnProductReturnPeriodAfterPurchaseDateRequiringPreApproval_9E2C85690DB621A820001A8C35BE00BB" xlink:type="arc" />
    <link:label id="lab_ango_ContractwithCustomerRightofReturnRestockingCharge_B5FA1B3A3CFA639DFDB61A8C35BE4A08_terseLabel_en-US" xlink:label="lab_ango_ContractwithCustomerRightofReturnRestockingCharge_B5FA1B3A3CFA639DFDB61A8C35BE4A08" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Restocking charge (percent)</link:label>
    <link:label id="lab_ango_ContractwithCustomerRightofReturnRestockingCharge_B5FA1B3A3CFA639DFDB61A8C35BE4A08_label_en-US" xlink:label="lab_ango_ContractwithCustomerRightofReturnRestockingCharge_B5FA1B3A3CFA639DFDB61A8C35BE4A08" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Contract with Customer, Right of Return, Restocking Charge</link:label>
    <link:label id="lab_ango_ContractwithCustomerRightofReturnRestockingCharge_B5FA1B3A3CFA639DFDB61A8C35BE4A08_documentation_en-US" xlink:label="lab_ango_ContractwithCustomerRightofReturnRestockingCharge_B5FA1B3A3CFA639DFDB61A8C35BE4A08" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">Contract with Customer, Right of Return, Restocking Charge</link:label>
    <link:loc xlink:href="ango-20190531.xsd#ango_ContractwithCustomerRightofReturnRestockingCharge" xlink:label="loc_ango_ContractwithCustomerRightofReturnRestockingCharge_B5FA1B3A3CFA639DFDB61A8C35BE4A08" xlink:type="locator" />
    <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ango_ContractwithCustomerRightofReturnRestockingCharge_B5FA1B3A3CFA639DFDB61A8C35BE4A08" xlink:to="lab_ango_ContractwithCustomerRightofReturnRestockingCharge_B5FA1B3A3CFA639DFDB61A8C35BE4A08" xlink:type="arc" />
    <link:label id="lab_ango_ContractwithCustomerRightofReturnMinimumRemainingProductLifePriortoReturn_8D9115C7A8B839FD2E621A8C35BEA8FB_terseLabel_en-US" xlink:label="lab_ango_ContractwithCustomerRightofReturnMinimumRemainingProductLifePriortoReturn_8D9115C7A8B839FD2E621A8C35BEA8FB" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Restocking charge period (months)</link:label>
    <link:label id="lab_ango_ContractwithCustomerRightofReturnMinimumRemainingProductLifePriortoReturn_8D9115C7A8B839FD2E621A8C35BEA8FB_label_en-US" xlink:label="lab_ango_ContractwithCustomerRightofReturnMinimumRemainingProductLifePriortoReturn_8D9115C7A8B839FD2E621A8C35BEA8FB" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Contract with Customer, Right of Return, Minimum Remaining Product Life Prior to Return</link:label>
    <link:label id="lab_ango_ContractwithCustomerRightofReturnMinimumRemainingProductLifePriortoReturn_8D9115C7A8B839FD2E621A8C35BEA8FB_documentation_en-US" xlink:label="lab_ango_ContractwithCustomerRightofReturnMinimumRemainingProductLifePriortoReturn_8D9115C7A8B839FD2E621A8C35BEA8FB" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">Contract with Customer, Right of Return, Minimum Remaining Product Life Prior to Return</link:label>
    <link:loc xlink:href="ango-20190531.xsd#ango_ContractwithCustomerRightofReturnMinimumRemainingProductLifePriortoReturn" xlink:label="loc_ango_ContractwithCustomerRightofReturnMinimumRemainingProductLifePriortoReturn_8D9115C7A8B839FD2E621A8C35BEA8FB" xlink:type="locator" />
    <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ango_ContractwithCustomerRightofReturnMinimumRemainingProductLifePriortoReturn_8D9115C7A8B839FD2E621A8C35BEA8FB" xlink:to="lab_ango_ContractwithCustomerRightofReturnMinimumRemainingProductLifePriortoReturn_8D9115C7A8B839FD2E621A8C35BEA8FB" xlink:type="arc" />
    <link:label id="lab_us-gaap_ContractWithCustomerLiabilityRevenueRecognized_E7681BE8F26F8F99B4A31A8C35BFB072_terseLabel_en-US" xlink:label="lab_us-gaap_ContractWithCustomerLiabilityRevenueRecognized_E7681BE8F26F8F99B4A31A8C35BFB072" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Revenue recognized from contract liabilities</link:label>
    <link:label id="lab_us-gaap_ContractWithCustomerLiabilityRevenueRecognized_E7681BE8F26F8F99B4A31A8C35BFB072_label_en-US" xlink:label="lab_us-gaap_ContractWithCustomerLiabilityRevenueRecognized_E7681BE8F26F8F99B4A31A8C35BFB072" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Contract with Customer, Liability, Revenue Recognized</link:label>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_ContractWithCustomerLiabilityRevenueRecognized" xlink:label="loc_us-gaap_ContractWithCustomerLiabilityRevenueRecognized_E7681BE8F26F8F99B4A31A8C35BFB072" xlink:type="locator" />
    <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_ContractWithCustomerLiabilityRevenueRecognized_E7681BE8F26F8F99B4A31A8C35BFB072" xlink:to="lab_us-gaap_ContractWithCustomerLiabilityRevenueRecognized_E7681BE8F26F8F99B4A31A8C35BFB072" xlink:type="arc" />
    <link:label id="lab_us-gaap_ContractWithCustomerLiabilityIncreaseDecreaseForContractAcquiredInBusinessCombination_F3673FFCAEDBE39875561A8C35BFE0C4_terseLabel_en-US" xlink:label="lab_us-gaap_ContractWithCustomerLiabilityIncreaseDecreaseForContractAcquiredInBusinessCombination_F3673FFCAEDBE39875561A8C35BFE0C4" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Additions to contract liabilities</link:label>
    <link:label id="lab_us-gaap_ContractWithCustomerLiabilityIncreaseDecreaseForContractAcquiredInBusinessCombination_F3673FFCAEDBE39875561A8C35BFE0C4_label_en-US" xlink:label="lab_us-gaap_ContractWithCustomerLiabilityIncreaseDecreaseForContractAcquiredInBusinessCombination_F3673FFCAEDBE39875561A8C35BFE0C4" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Contract with Customer, Liability, Increase (Decrease) for Contract Acquired in Business Combination</link:label>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_ContractWithCustomerLiabilityIncreaseDecreaseForContractAcquiredInBusinessCombination" xlink:label="loc_us-gaap_ContractWithCustomerLiabilityIncreaseDecreaseForContractAcquiredInBusinessCombination_F3673FFCAEDBE39875561A8C35BFE0C4" xlink:type="locator" />
    <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_ContractWithCustomerLiabilityIncreaseDecreaseForContractAcquiredInBusinessCombination_F3673FFCAEDBE39875561A8C35BFE0C4" xlink:to="lab_us-gaap_ContractWithCustomerLiabilityIncreaseDecreaseForContractAcquiredInBusinessCombination_F3673FFCAEDBE39875561A8C35BFE0C4" xlink:type="arc" />
    <link:label id="lab_us-gaap_PurchaseObligation_D867625DD9A1DE36E1CF1F4167946241_totalLabel_en-US" xlink:label="lab_us-gaap_PurchaseObligation_D867625DD9A1DE36E1CF1F4167946241" xlink:role="http://www.xbrl.org/2003/role/totalLabel" xlink:type="resource" xml:lang="en-US">Purchase obligation</link:label>
    <link:label id="lab_us-gaap_PurchaseObligation_D867625DD9A1DE36E1CF1F4167946241_label_en-US" xlink:label="lab_us-gaap_PurchaseObligation_D867625DD9A1DE36E1CF1F4167946241" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Purchase Obligation</link:label>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_PurchaseObligation" xlink:label="loc_us-gaap_PurchaseObligation_D867625DD9A1DE36E1CF1F4167946241" xlink:type="locator" />
    <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_PurchaseObligation_D867625DD9A1DE36E1CF1F4167946241" xlink:to="lab_us-gaap_PurchaseObligation_D867625DD9A1DE36E1CF1F4167946241" xlink:type="arc" />
    <link:label id="lab_us-gaap_PurchaseObligationDueInSecondYear_839D38B48B2ABB8DB8E71F416794025C_terseLabel_en-US" xlink:label="lab_us-gaap_PurchaseObligationDueInSecondYear_839D38B48B2ABB8DB8E71F416794025C" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Purchase obligation, 2020</link:label>
    <link:label id="lab_us-gaap_PurchaseObligationDueInSecondYear_839D38B48B2ABB8DB8E71F416794025C_label_en-US" xlink:label="lab_us-gaap_PurchaseObligationDueInSecondYear_839D38B48B2ABB8DB8E71F416794025C" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Purchase Obligation, Due in Second Year</link:label>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_PurchaseObligationDueInSecondYear" xlink:label="loc_us-gaap_PurchaseObligationDueInSecondYear_839D38B48B2ABB8DB8E71F416794025C" xlink:type="locator" />
    <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_PurchaseObligationDueInSecondYear_839D38B48B2ABB8DB8E71F416794025C" xlink:to="lab_us-gaap_PurchaseObligationDueInSecondYear_839D38B48B2ABB8DB8E71F416794025C" xlink:type="arc" />
    <link:label id="lab_us-gaap_PurchaseObligationDueInThirdYear_362E0E09DC102C8C017E1F416795F886_terseLabel_en-US" xlink:label="lab_us-gaap_PurchaseObligationDueInThirdYear_362E0E09DC102C8C017E1F416795F886" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Purchase obligation, 2021</link:label>
    <link:label id="lab_us-gaap_PurchaseObligationDueInThirdYear_362E0E09DC102C8C017E1F416795F886_label_en-US" xlink:label="lab_us-gaap_PurchaseObligationDueInThirdYear_362E0E09DC102C8C017E1F416795F886" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Purchase Obligation, Due in Third Year</link:label>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_PurchaseObligationDueInThirdYear" xlink:label="loc_us-gaap_PurchaseObligationDueInThirdYear_362E0E09DC102C8C017E1F416795F886" xlink:type="locator" />
    <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_PurchaseObligationDueInThirdYear_362E0E09DC102C8C017E1F416795F886" xlink:to="lab_us-gaap_PurchaseObligationDueInThirdYear_362E0E09DC102C8C017E1F416795F886" xlink:type="arc" />
    <link:label id="lab_us-gaap_PurchaseObligationDueInFourthYear_47DB63F4591AAB0FFA981F416795100F_terseLabel_en-US" xlink:label="lab_us-gaap_PurchaseObligationDueInFourthYear_47DB63F4591AAB0FFA981F416795100F" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Purchase obligation, 2022</link:label>
    <link:label id="lab_us-gaap_PurchaseObligationDueInFourthYear_47DB63F4591AAB0FFA981F416795100F_label_en-US" xlink:label="lab_us-gaap_PurchaseObligationDueInFourthYear_47DB63F4591AAB0FFA981F416795100F" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Purchase Obligation, Due in Fourth Year</link:label>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_PurchaseObligationDueInFourthYear" xlink:label="loc_us-gaap_PurchaseObligationDueInFourthYear_47DB63F4591AAB0FFA981F416795100F" xlink:type="locator" />
    <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_PurchaseObligationDueInFourthYear_47DB63F4591AAB0FFA981F416795100F" xlink:to="lab_us-gaap_PurchaseObligationDueInFourthYear_47DB63F4591AAB0FFA981F416795100F" xlink:type="arc" />
    <link:label id="lab_us-gaap_PurchaseObligationDueInFifthYear_562BFAA344DBAB0CCEA21F416795F3F9_terseLabel_en-US" xlink:label="lab_us-gaap_PurchaseObligationDueInFifthYear_562BFAA344DBAB0CCEA21F416795F3F9" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Purchase obligation, 2023</link:label>
    <link:label id="lab_us-gaap_PurchaseObligationDueInFifthYear_562BFAA344DBAB0CCEA21F416795F3F9_label_en-US" xlink:label="lab_us-gaap_PurchaseObligationDueInFifthYear_562BFAA344DBAB0CCEA21F416795F3F9" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Purchase Obligation, Due in Fifth Year</link:label>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_PurchaseObligationDueInFifthYear" xlink:label="loc_us-gaap_PurchaseObligationDueInFifthYear_562BFAA344DBAB0CCEA21F416795F3F9" xlink:type="locator" />
    <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_PurchaseObligationDueInFifthYear_562BFAA344DBAB0CCEA21F416795F3F9" xlink:to="lab_us-gaap_PurchaseObligationDueInFifthYear_562BFAA344DBAB0CCEA21F416795F3F9" xlink:type="arc" />
    <link:label id="lab_us-gaap_PurchaseObligationDueAfterFifthYear_C71834BE78EE7BB9834E1F416795FA88_terseLabel_en-US" xlink:label="lab_us-gaap_PurchaseObligationDueAfterFifthYear_C71834BE78EE7BB9834E1F416795FA88" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Purchase obligation, 2024 and thereafter</link:label>
    <link:label id="lab_us-gaap_PurchaseObligationDueAfterFifthYear_C71834BE78EE7BB9834E1F416795FA88_label_en-US" xlink:label="lab_us-gaap_PurchaseObligationDueAfterFifthYear_C71834BE78EE7BB9834E1F416795FA88" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Purchase Obligation, Due after Fifth Year</link:label>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_PurchaseObligationDueAfterFifthYear" xlink:label="loc_us-gaap_PurchaseObligationDueAfterFifthYear_C71834BE78EE7BB9834E1F416795FA88" xlink:type="locator" />
    <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_PurchaseObligationDueAfterFifthYear_C71834BE78EE7BB9834E1F416795FA88" xlink:to="lab_us-gaap_PurchaseObligationDueAfterFifthYear_C71834BE78EE7BB9834E1F416795FA88" xlink:type="arc" />
    <link:label id="lab_ango_Royalties_58E1A1F0DF870F2C24C11F4167954216_totalLabel_en-US" xlink:label="lab_ango_Royalties_58E1A1F0DF870F2C24C11F4167954216" xlink:role="http://www.xbrl.org/2003/role/totalLabel" xlink:type="resource" xml:lang="en-US">Royalties</link:label>
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    <link:label id="lab_ango_Royalties_58E1A1F0DF870F2C24C11F4167954216_documentation_en-US" xlink:label="lab_ango_Royalties_58E1A1F0DF870F2C24C11F4167954216" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">Royalties</link:label>
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