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        <BusinessCd>900099</BusinessCd>
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      <OtherRevenueMiscGrp>
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        <ExclusionAmt>1029</ExclusionAmt>
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      <OtherExpensesGrp>
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      <OtherExpensesGrp>
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      <InvestmentIncomePYPct>0.00020</InvestmentIncomePYPct>
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      <OtherLiabilitiesOrgGrp>
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      <FootnoteTextInd>X</FootnoteTextInd>
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      <RevenueSubtotalAmt>7953184</RevenueSubtotalAmt>
      <RevenueNotReportedFinclStmtAmt>0</RevenueNotReportedFinclStmtAmt>
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      <ExpensesNotRptFinclStmtAmt>0</ExpensesNotRptFinclStmtAmt>
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        <FormAndLineReferenceDesc>PART X, LINE 2:</FormAndLineReferenceDesc>
        <ExplanationTxt>THE INSTITUTE IS GENERALLY EXEMPT FROM FEDERAL INCOME TAXES UNDER THE PROVISIONS OF SECTION 501(C)(3) OF THE INTERNAL REVENUE CODE AND IS NOT CONSIDERED TO BE A PRIVATE FOUNDATION. UNDER CURRENT INTERNAL REVENUE SERVICE REGULATIONS, REVENUE FROM CERTAIN UNRELATED BUSINESS ACTIVITIES IS SUBJECT TO UNRELATED BUSINESS INCOME TAX. THE INSTITUTE HAD NO NET INCOME TAX EXPENSE ON UNRELATED BUSINESS INCOME FOR THE YEAR ENDED DECEMBER 31, 2024. ACCORDINGLY, NO PROVISION FOR INCOME TAXES HAS BEEN MADE ON THE ACCOMPANYING FINANCIAL STATEMENTS. MANAGEMENT EVALUATED THE INSTITUTE'S TAX POSITIONS AND CONCLUDED THAT THE INSTITUTE HAD TAKEN NO UNCERTAIN TAX POSITIONS THAT REQUIRE ADJUSTMENT TO THE FINANCIAL STATEMENTS TO COMPLY WITH THE PROVISIONS OF THIS GUIDANCE.</ExplanationTxt>
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      <AccountActivitiesOutsideUSGrp>
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        <SpecificServicesProvidedTxt>ESTABLISHING CONNECTIONS FOR FUTURE TRAINING OPPORTUNITIES</SpecificServicesProvidedTxt>
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      <ContinuationSpentAmt>0</ContinuationSpentAmt>
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      <InterestInForeignTrustInd>0</InterestInForeignTrustInd>
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      <SupplementalInformationDetail>
        <FormAndLineReferenceDesc>PART I, LINE 3:</FormAndLineReferenceDesc>
        <ExplanationTxt>IN ACCORDANCE WITH IRS INSTRUCTIONS, ALL AMOUNTS REPORTED IN PART I OF SCHEDULE F ARE REPORTED USING THE ACCRUAL BASIS OF ACCOUNTING, WHICH IS THE SAME METHOD OF ACCOUNTING USED IN THE FINANCIAL STATEMENTS.</ExplanationTxt>
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      <RltdOrgOfficerTrstKeyEmplGrp>
        <PersonNm>GERTRUDE-EMILIA COSTIN</PersonNm>
        <TitleTxt>DIRECTOR OF LABORATORY SERVICES</TitleTxt>
        <BaseCompensationFilingOrgAmt>149706</BaseCompensationFilingOrgAmt>
        <CompensationBasedOnRltdOrgsAmt>0</CompensationBasedOnRltdOrgsAmt>
        <BonusFilingOrganizationAmount>0</BonusFilingOrganizationAmount>
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        <DeferredCompRltdOrgsAmt>0</DeferredCompRltdOrgsAmt>
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        <NontaxableBenefitsRltdOrgsAmt>0</NontaxableBenefitsRltdOrgsAmt>
        <TotalCompensationFilingOrgAmt>161349</TotalCompensationFilingOrgAmt>
        <TotalCompensationRltdOrgsAmt>0</TotalCompensationRltdOrgsAmt>
        <CompReportPrior990FilingOrgAmt>0</CompReportPrior990FilingOrgAmt>
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        <FormAndLineReferenceDesc>FORM 990, PART VI, SECTION B, LINE 11B</FormAndLineReferenceDesc>
        <ExplanationTxt>THE FORM 990 QUESTIONNAIRE FROM THE INDEPENDENT TAX CONSULTING FIRM IS FILLED OUT BY THE PRESIDENT, THE CHIEF OPERATING OFFICER AND THE CONTROLLER OF THE CORPORATION. WHEN THE COMPLETED FORM 990 IS RECEIVED FROM THE INDEPENDENT TAX CONSULTING FIRM, IT IS REVIEWED BY ALL THREE OF THE OFFICERS OF THE CORPORATION DURING A MEETING RUN BY THE PRESIDENT. ANY DISCREPANCIES ARE REVIEWED AND ADDRESSED WITH THE INDEPENDENT TAX CONSULTANT. THE FINAL FORM 990 IS SENT TO ALL BOARD MEMBERS BEFORE SUBMISSION TO THE INTERNAL REVENUE SERVICE.</ExplanationTxt>
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      <SupplementalInformationDetail>
        <FormAndLineReferenceDesc>FORM 990, PART VI, SECTION B, LINE 12C</FormAndLineReferenceDesc>
        <ExplanationTxt>THE CONFLICT OF INTEREST POLICY IS REVIEWED AT THE ANNUAL MEETING OF THE BOARD OF DIRECTORS BY THE CHAIRMAN OF THE BOARD OF DIRECTORS. EACH MEMBER IS ASKED IF ANY NEW CONFLICT OF INTERESTS HAVE OCCURRED. IF A POTENTIAL CONFLICT IS UNCOVERED, A SOLUTION IS PROPOSED AND VOTED ON BY MEMBERS OF THE BOARD OF DIRECTORS AND RECORDED IN THE OFFICIAL MINUTES. EACH OF THESE ISSUES IS REVIEWED AT THE ANNUAL MEETING OF THE BOARD OF DIRECTORS.</ExplanationTxt>
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      <SupplementalInformationDetail>
        <FormAndLineReferenceDesc>FORM 990, PART VI, SECTION B, LINE 15</FormAndLineReferenceDesc>
        <ExplanationTxt>DATA ON COMPARABLE SALARIES WITHIN PROFIT AND NONPROFIT ENTITIES IS COLLECTED FROM VARIOUS SOURCES THROUGHOUT THE YEAR, INCLUDING SURVEYS FROM APPROPRIATE TRADE JOURNALS OR MAGAZINES, PERSONAL CONTACT WITH HUMAN RESOURCE DEPARTMENTS AND ONLINE DATABASES. THIS DATA IS BROUGHT TO A MEETING OF THE BOARD OF DIRECTORS FOR REVIEW AND DISCUSSION IN CORRELATION WITH THE CORPORATION'S REVENUES AND EXPENSES. THE CEO SUGGESTS AN INCREASE IN SALARY FOR EACH OFFICER, AND AN OFFICER OR INDEPENDENT BOARD MEMBER SUGGESTS AN INCREASE IN SALARY FOR THE CEO. AFTER DISCUSSION AND COMMENTS, THE INCREASES FOR EACH OFFICER ARE VOTED UPON FOR APPROVAL. THE PROCESS WAS LAST CONDUCTED IN JANUARY 2025.</ExplanationTxt>
      </SupplementalInformationDetail>
      <SupplementalInformationDetail>
        <FormAndLineReferenceDesc>FORM 990, PART VI, SECTION C, LINE 19</FormAndLineReferenceDesc>
        <ExplanationTxt>IIVS MAKES ITS GOVERNING DOCUMENTS, CONFLICT OF INTEREST POLICY AND FINANCIAL STATEMENTS AVAILABLE TO THE PUBLIC IN TWO WAYS: 1) REQUESTS CAN BE MADE BY PHONE OR EMAIL; 2) DOCUMENTS ARE AVAILABLE FOR INSPECTION AND COPYING ON-SITE AT IIVS' FACILITIES. THESE DOCUMENTS ARE AVAILABLE FOR THE SAME PERIOD OF DISCLOSURE AS SET FORTH IN SECTION 6104(D).</ExplanationTxt>
      </SupplementalInformationDetail>
      <SupplementalInformationDetail>
        <FormAndLineReferenceDesc>FORM 990, PART XII, LINE 2C:</FormAndLineReferenceDesc>
        <ExplanationTxt>THE PROCESS HAS NOT CHANGED FROM THE PRIOR YEAR.</ExplanationTxt>
      </SupplementalInformationDetail>
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  </ReturnData>
</Return>