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        <CurrentTaxYearMinus3YearsAmt>2014723</CurrentTaxYearMinus3YearsAmt>
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        <ContributorBusinessName>
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        </ContributorBusinessName>
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          <AddressLine2>RESTRICTED</AddressLine2>
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      <FootnoteTextInd>X</FootnoteTextInd>
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      <RevenueNotReportedFinclStmtAmt>0</RevenueNotReportedFinclStmtAmt>
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      <ExpensesNotReportedAmt>0</ExpensesNotReportedAmt>
      <ExpensesSubtotalAmt>3116978</ExpensesSubtotalAmt>
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      <ExpensesNotRptFinclStmtAmt>44491</ExpensesNotRptFinclStmtAmt>
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      <SupplementalInformationDetail>
        <FormAndLineReferenceDesc>PART X, LINE 2:</FormAndLineReferenceDesc>
        <ExplanationTxt>THE ORGANIZATION ACCOUNTS FOR UNCERTAINTIES IN INCOME TAXES IN ACCORDANCE WITH AUTHORITATIVE GUIDANCE, WHICH PRESCRIBES A RECOGNITION THRESHOLD OF MORE-LIKELY-THAN-NOT TO BE SUSTAINED UPON EXAMINATION BY THE APPROPRIATE TAXING AUTHORITY. MEASUREMENT OF THE TAX UNCERTAINTY OCCURS IF THE RECOGNITION THRESHOLD HAS BEEN MET. MANAGEMENT DETERMINED THERE WERE NO TAX UNCERTAINTIES THAT MET THE RECOGNITION THRESHOLD AT DECEMBER 31, 2024 AND 2023. THE ORGANIZATION'S POLICY IS TO RECOGNIZE INTEREST RELATED TO UNRECOGNIZED TAX BENEFITS IN INTEREST EXPENSE AND PENALTIES IN GENERAL AND ADMINISTRATIVE EXPENSES.</ExplanationTxt>
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      <SupplementalInformationDetail>
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      <SupplementalInformationDetail>
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      <GrantsToOrgOutsideUSGrp>
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      <GrantsToOrgOutsideUSGrp>
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      <GrantsToOrgOutsideUSGrp>
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      <GrantsToOrgOutsideUSGrp>
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      <GrantsToOrgOutsideUSGrp>
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      <GrantsToOrgOutsideUSGrp>
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      <GrantsToOrgOutsideUSGrp>
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        <OtherCompensationFilingOrgAmt>0</OtherCompensationFilingOrgAmt>
        <OtherCompensationRltdOrgsAmt>0</OtherCompensationRltdOrgsAmt>
        <DeferredCompensationFlngOrgAmt>0</DeferredCompensationFlngOrgAmt>
        <DeferredCompRltdOrgsAmt>16629</DeferredCompRltdOrgsAmt>
        <NontaxableBenefitsFilingOrgAmt>0</NontaxableBenefitsFilingOrgAmt>
        <NontaxableBenefitsRltdOrgsAmt>2679</NontaxableBenefitsRltdOrgsAmt>
        <TotalCompensationFilingOrgAmt>0</TotalCompensationFilingOrgAmt>
        <TotalCompensationRltdOrgsAmt>337633</TotalCompensationRltdOrgsAmt>
        <CompReportPrior990FilingOrgAmt>0</CompReportPrior990FilingOrgAmt>
        <CompReportPrior990RltdOrgsAmt>0</CompReportPrior990RltdOrgsAmt>
      </RltdOrgOfficerTrstKeyEmplGrp>
      <RltdOrgOfficerTrstKeyEmplGrp>
        <PersonNm>KAREN RICHARDS</PersonNm>
        <TitleTxt>VP OF FINANCE &amp; OPERATIONS</TitleTxt>
        <BaseCompensationFilingOrgAmt>0</BaseCompensationFilingOrgAmt>
        <CompensationBasedOnRltdOrgsAmt>179008</CompensationBasedOnRltdOrgsAmt>
        <BonusFilingOrganizationAmount>0</BonusFilingOrganizationAmount>
        <BonusRelatedOrganizationsAmt>13950</BonusRelatedOrganizationsAmt>
        <OtherCompensationFilingOrgAmt>0</OtherCompensationFilingOrgAmt>
        <OtherCompensationRltdOrgsAmt>0</OtherCompensationRltdOrgsAmt>
        <DeferredCompensationFlngOrgAmt>0</DeferredCompensationFlngOrgAmt>
        <DeferredCompRltdOrgsAmt>10372</DeferredCompRltdOrgsAmt>
        <NontaxableBenefitsFilingOrgAmt>0</NontaxableBenefitsFilingOrgAmt>
        <NontaxableBenefitsRltdOrgsAmt>22452</NontaxableBenefitsRltdOrgsAmt>
        <TotalCompensationFilingOrgAmt>0</TotalCompensationFilingOrgAmt>
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        <CompReportPrior990FilingOrgAmt>0</CompReportPrior990FilingOrgAmt>
        <CompReportPrior990RltdOrgsAmt>0</CompReportPrior990RltdOrgsAmt>
      </RltdOrgOfficerTrstKeyEmplGrp>
      <SupplementalInformationDetail>
        <FormAndLineReferenceDesc>PART I, LINE 3</FormAndLineReferenceDesc>
        <ExplanationTxt>OFFICERS ARE PAID BY A RELATED ORGANIZATION. COMPENSATION IS DETERMINED BY A COMPENSATION SURVEYS OR STUDIES AND APPROVAL BY THE BOARD OR COMPENSATION COMMITTEE.</ExplanationTxt>
      </SupplementalInformationDetail>
    </IRS990ScheduleJ>
    <IRS990ScheduleO documentId="RetDoc1044400001">
      <SupplementalInformationDetail>
        <FormAndLineReferenceDesc>FORM 990, PART VI, SECTION B, LINE 11B</FormAndLineReferenceDesc>
        <ExplanationTxt>THE FORM 990 IS REVIEWED BY THE EXECUTIVE DIRECTOR AND TREASURER AND COMPARED TO MEETING NOTES AND ACTIVITY FOR THE YEAR TO ENSURE ACCURACY OF THE RETURN AND SHARED WITH THE FULL BOARD PRIOR TO FILING THE RETURN WITH THE IRS.</ExplanationTxt>
      </SupplementalInformationDetail>
      <SupplementalInformationDetail>
        <FormAndLineReferenceDesc>FORM 990, PART VI, SECTION B, LINE 12C</FormAndLineReferenceDesc>
        <ExplanationTxt>AONA ANNUALLY SHARES THE POLICY WITH OFFICERS, DIRECTORS, SURGEON VOLUNTEERS AND EMPLOYEES. FAMILY AND BUSINESS RELATIONSHIPS ARE EXPRESSLY MENTIONED IN THE POLICY. WE REQUIRE THAT ALL INDICATE IN WRITING THAT THEY HAVE REVIEWED AND UNDERSTAND THE POLICY. ALL ARE REQUIRED TO DISCLOSE IN WRITING ANY POTENTIAL CONFLICTS. AONA GOES THROUGH A PROCESS TO RESOLVE ANY POTENTIAL CONFLICTS. THIS PROCESS INCLUDES ELEVATION OF ISSUES TO THE BOARD OF DIRECTORS IF NECESSARY. THERE ARE MULTIPLE LAYERS OF REVIEW. FIRST, THE COMPLIANCE DEPARTMENT STAFF, LED BY THE DIRECTOR OF CME, REVIEWS ALL DISCLOSURES. THE DIRECTOR REPORTS TO THE ETHICS AND CONTENT VALIDATION SUBCOMMITTEE. THE SUBCOMMITTEE THEN REPORTS TO THE BOARD OF DIRECTORS. SHOULD THE CONFLICTED PERSON BE A BOARD DIRECTOR, THE OTHER DIRECTORS WOULD ENSURE THAT THE CONFLICTED PERSON DOES NOT PARTICIPATE IN DECISION-MAKING REGARDING THE CONFLICT.</ExplanationTxt>
      </SupplementalInformationDetail>
      <SupplementalInformationDetail>
        <FormAndLineReferenceDesc>FORM 990, PART VI, SECTION C, LINE 19</FormAndLineReferenceDesc>
        <ExplanationTxt>THE ORGANIZATION MAKES THE GOVERNING DOCUMENTS, CONFLICT OF INTEREST POLICY, AND FINANCIAL STATEMENTS AVAILABLE TO THE PUBLIC UPON REQUEST.</ExplanationTxt>
      </SupplementalInformationDetail>
    </IRS990ScheduleO>
    <IRS990ScheduleR documentId="RetDoc1043400001">
      <IdRelatedTaxExemptOrgGrp>
        <DisregardedEntityName>
          <BusinessNameLine1Txt>AO NORTH AMERICA INC</BusinessNameLine1Txt>
        </DisregardedEntityName>
        <USAddress>
          <AddressLine1Txt>435 DEVON PARK DRIVE SUITE 820</AddressLine1Txt>
          <CityNm>WAYNE</CityNm>
          <StateAbbreviationCd>PA</StateAbbreviationCd>
          <ZIPCd>19087</ZIPCd>
        </USAddress>
        <EIN>371901892</EIN>
        <PrimaryActivitiesTxt>SUPPORTING ORGANIZATION</PrimaryActivitiesTxt>
        <LegalDomicileStateCd>PA</LegalDomicileStateCd>
        <ExemptCodeSectionTxt>501(C)(3)</ExemptCodeSectionTxt>
        <PublicCharityStatusTxt>LINE 12A, I</PublicCharityStatusTxt>
        <DirectControllingEntityName>
          <BusinessNameLine1Txt>AO NORTH AMERICA CHARITABLE FUND</BusinessNameLine1Txt>
        </DirectControllingEntityName>
        <ControlledOrganizationInd>1</ControlledOrganizationInd>
      </IdRelatedTaxExemptOrgGrp>
      <ReceiptOfIntAnntsRntsRyltsInd>0</ReceiptOfIntAnntsRntsRyltsInd>
      <GiftGrntOrCapContriToOthOrgInd>0</GiftGrntOrCapContriToOthOrgInd>
      <GiftGrntCapContriFromOthOrgInd>0</GiftGrntCapContriFromOthOrgInd>
      <LoansOrGuaranteesToOtherOrgInd>0</LoansOrGuaranteesToOtherOrgInd>
      <LoansOrGuaranteesFromOthOrgInd>1</LoansOrGuaranteesFromOthOrgInd>
      <DivRelatedOrganizationInd>0</DivRelatedOrganizationInd>
      <AssetSaleToOtherOrgInd>0</AssetSaleToOtherOrgInd>
      <AssetPurchaseFromOtherOrgInd>0</AssetPurchaseFromOtherOrgInd>
      <AssetExchangeInd>0</AssetExchangeInd>
      <RentalOfFacilitiesToOthOrgInd>0</RentalOfFacilitiesToOthOrgInd>
      <RentalOfFcltsFromOthOrgInd>0</RentalOfFcltsFromOthOrgInd>
      <PerformOfServicesForOthOrgInd>0</PerformOfServicesForOthOrgInd>
      <PerformOfServicesByOtherOrgInd>1</PerformOfServicesByOtherOrgInd>
      <SharingOfFacilitiesInd>1</SharingOfFacilitiesInd>
      <PaidEmployeesSharingInd>1</PaidEmployeesSharingInd>
      <ReimbursementPaidToOtherOrgInd>0</ReimbursementPaidToOtherOrgInd>
      <ReimbursementPaidByOtherOrgInd>0</ReimbursementPaidByOtherOrgInd>
      <TransferToOtherOrgInd>0</TransferToOtherOrgInd>
      <TransferFromOtherOrgInd>0</TransferFromOtherOrgInd>
      <TransactionsRelatedOrgGrp>
        <OtherOrganizationName>
          <BusinessNameLine1Txt>AO NORTH AMERICA INC</BusinessNameLine1Txt>
        </OtherOrganizationName>
        <TransactionTypeTxt>E</TransactionTypeTxt>
        <InvolvedAmt>3562948</InvolvedAmt>
        <MethodOfAmountDeterminationTxt>COST</MethodOfAmountDeterminationTxt>
      </TransactionsRelatedOrgGrp>
    </IRS990ScheduleR>
  </ReturnData>
</Return>