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        <PersonNm>DIANNA HOWARD MD</PersonNm>
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        <PersonNm>BRIAN BETTS MD</PersonNm>
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        <PersonNm>ALAN HANASH MD PHD</PersonNm>
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      <Form990PartVIISectionAGrp>
        <PersonNm>SUNG-YUN PAI MD</PersonNm>
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        <PersonNm>KIRSTEN WILLIAMS</PersonNm>
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      <Form990PartVIISectionAGrp>
        <PersonNm>LORI MUFFLY MD</PersonNm>
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      <Form990PartVIISectionAGrp>
        <PersonNm>NIRALI SHAH MD</PersonNm>
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      <Form990PartVIISectionAGrp>
        <PersonNm>LESLIE KEAN</PersonNm>
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      <Form990PartVIISectionAGrp>
        <PersonNm>SHALINI SHENOY</PersonNm>
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      <Form990PartVIISectionAGrp>
        <PersonNm>ENEIDA NEMECEK</PersonNm>
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      <Form990PartVIISectionAGrp>
        <PersonNm>ANDRE WILLIAMS</PersonNm>
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        <ReportableCompFromRltdOrgAmt>0</ReportableCompFromRltdOrgAmt>
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      <ContractorCompensationGrp>
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          <BusinessName>
            <BusinessNameLine1Txt>SMITHBUCKLIN CORPORATION</BusinessNameLine1Txt>
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        <ContractorAddress>
          <USAddress>
            <AddressLine1Txt>330 N WABASH AVENUE SUITE 2000</AddressLine1Txt>
            <CityNm>CHICAGO</CityNm>
            <StateAbbreviationCd>IL</StateAbbreviationCd>
            <ZIPCd>60611</ZIPCd>
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      <ContractorCompensationGrp>
        <ContractorName>
          <BusinessName>
            <BusinessNameLine1Txt>FREEMAN DECORATING</BusinessNameLine1Txt>
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        <ContractorAddress>
          <USAddress>
            <AddressLine1Txt>1600 VICEROY SUITE 100</AddressLine1Txt>
            <CityNm>DALLAS</CityNm>
            <StateAbbreviationCd>TX</StateAbbreviationCd>
            <ZIPCd>75235</ZIPCd>
          </USAddress>
        </ContractorAddress>
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      <ContractorCompensationGrp>
        <ContractorName>
          <BusinessName>
            <BusinessNameLine1Txt>NIMITT CONSULTING INC</BusinessNameLine1Txt>
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        <ContractorAddress>
          <USAddress>
            <AddressLine1Txt>2038 18TH ST NW SUITE 403</AddressLine1Txt>
            <CityNm>WASHINGTON</CityNm>
            <StateAbbreviationCd>DC</StateAbbreviationCd>
            <ZIPCd>20009</ZIPCd>
          </USAddress>
        </ContractorAddress>
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      <ContractorCompensationGrp>
        <ContractorName>
          <BusinessName>
            <BusinessNameLine1Txt>FRANCE FOUNDATION</BusinessNameLine1Txt>
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        <ContractorAddress>
          <USAddress>
            <AddressLine1Txt>10 VISTA DRIVE STE 100</AddressLine1Txt>
            <CityNm>OLY LYME</CityNm>
            <StateAbbreviationCd>CT</StateAbbreviationCd>
            <ZIPCd>06371</ZIPCd>
          </USAddress>
        </ContractorAddress>
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      <TotalContributionsAmt>2157455</TotalContributionsAmt>
      <ProgramServiceRevenueGrp>
        <Desc>ANNUAL MEETING</Desc>
        <BusinessCd>900099</BusinessCd>
        <TotalRevenueColumnAmt>1932433</TotalRevenueColumnAmt>
        <RelatedOrExemptFuncIncomeAmt>1932433</RelatedOrExemptFuncIncomeAmt>
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      <ProgramServiceRevenueGrp>
        <Desc>INDUSTRY RELATIONS</Desc>
        <BusinessCd>900099</BusinessCd>
        <TotalRevenueColumnAmt>1288995</TotalRevenueColumnAmt>
        <RelatedOrExemptFuncIncomeAmt>1288995</RelatedOrExemptFuncIncomeAmt>
      </ProgramServiceRevenueGrp>
      <ProgramServiceRevenueGrp>
        <Desc>OTHER MEETINGS</Desc>
        <BusinessCd>900099</BusinessCd>
        <TotalRevenueColumnAmt>811064</TotalRevenueColumnAmt>
        <RelatedOrExemptFuncIncomeAmt>811064</RelatedOrExemptFuncIncomeAmt>
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      <ProgramServiceRevenueGrp>
        <Desc>PUBLICATIONS</Desc>
        <BusinessCd>900099</BusinessCd>
        <TotalRevenueColumnAmt>692224</TotalRevenueColumnAmt>
        <RelatedOrExemptFuncIncomeAmt>509967</RelatedOrExemptFuncIncomeAmt>
        <UnrelatedBusinessRevenueAmt>182257</UnrelatedBusinessRevenueAmt>
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      <ProgramServiceRevenueGrp>
        <Desc>MEMBERSHIP DUES</Desc>
        <BusinessCd>900099</BusinessCd>
        <TotalRevenueColumnAmt>278668</TotalRevenueColumnAmt>
        <RelatedOrExemptFuncIncomeAmt>278668</RelatedOrExemptFuncIncomeAmt>
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      <TotalOthProgramServiceRevGrp>
        <TotalRevenueColumnAmt>264751</TotalRevenueColumnAmt>
        <RelatedOrExemptFuncIncomeAmt>264751</RelatedOrExemptFuncIncomeAmt>
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      <TotalProgramServiceRevenueAmt>5268135</TotalProgramServiceRevenueAmt>
      <InvestmentIncomeGrp>
        <TotalRevenueColumnAmt>235730</TotalRevenueColumnAmt>
        <ExclusionAmt>235730</ExclusionAmt>
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      <RoyaltiesRevenueGrp>
        <TotalRevenueColumnAmt>448025</TotalRevenueColumnAmt>
        <ExclusionAmt>448025</ExclusionAmt>
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      <GrossAmountSalesAssetsGrp>
        <SecuritiesAmt>30000</SecuritiesAmt>
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        <SecuritiesAmt>32162</SecuritiesAmt>
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      <NetGainOrLossInvestmentsGrp>
        <TotalRevenueColumnAmt>-2162</TotalRevenueColumnAmt>
        <ExclusionAmt>-2162</ExclusionAmt>
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        <BusinessCd>900099</BusinessCd>
        <TotalRevenueColumnAmt>610</TotalRevenueColumnAmt>
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      <OtherRevenueTotalAmt>610</OtherRevenueTotalAmt>
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        <ExclusionAmt>682203</ExclusionAmt>
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      <GrantsToDomesticOrgsGrp>
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        <ProgramServicesAmt>835000</ProgramServicesAmt>
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      <GrantsToDomesticIndividualsGrp>
        <TotalAmt>28435</TotalAmt>
        <ProgramServicesAmt>28435</ProgramServicesAmt>
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      <ForeignGrantsGrp>
        <TotalAmt>67500</TotalAmt>
        <ProgramServicesAmt>67500</ProgramServicesAmt>
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      <CompCurrentOfcrDirectorsGrp>
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        <ProgramServicesAmt>31750</ProgramServicesAmt>
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      <FeesForServicesManagementGrp>
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        <ProgramServicesAmt>2756912</ProgramServicesAmt>
        <ManagementAndGeneralAmt>673240</ManagementAndGeneralAmt>
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      <FeesForServicesLegalGrp>
        <TotalAmt>18387</TotalAmt>
        <ManagementAndGeneralAmt>18387</ManagementAndGeneralAmt>
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      <FeesForServicesAccountingGrp>
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        <ManagementAndGeneralAmt>28778</ManagementAndGeneralAmt>
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      <FeesForSrvcInvstMgmntFeesGrp>
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        <ManagementAndGeneralAmt>30000</ManagementAndGeneralAmt>
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        <TotalAmt>567136</TotalAmt>
        <ProgramServicesAmt>567136</ProgramServicesAmt>
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        <ProgramServicesAmt>13150</ProgramServicesAmt>
        <ManagementAndGeneralAmt>34970</ManagementAndGeneralAmt>
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      <OfficeExpensesGrp>
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        <ProgramServicesAmt>78849</ProgramServicesAmt>
        <ManagementAndGeneralAmt>57329</ManagementAndGeneralAmt>
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      <InformationTechnologyGrp>
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        <ProgramServicesAmt>222645</ProgramServicesAmt>
        <ManagementAndGeneralAmt>13270</ManagementAndGeneralAmt>
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      <TravelGrp>
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        <ProgramServicesAmt>445102</ProgramServicesAmt>
        <ManagementAndGeneralAmt>4084</ManagementAndGeneralAmt>
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      <ConferencesMeetingsGrp>
        <TotalAmt>2070617</TotalAmt>
        <ProgramServicesAmt>2069395</ProgramServicesAmt>
        <ManagementAndGeneralAmt>1222</ManagementAndGeneralAmt>
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        <ProgramServicesAmt>18966</ProgramServicesAmt>
        <ManagementAndGeneralAmt>9507</ManagementAndGeneralAmt>
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      <OtherExpensesGrp>
        <Desc>DUES AND SUBSCRIPTIONS</Desc>
        <TotalAmt>226817</TotalAmt>
        <ProgramServicesAmt>226817</ProgramServicesAmt>
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        <Desc>REGISTRATION</Desc>
        <TotalAmt>75259</TotalAmt>
        <ProgramServicesAmt>75259</ProgramServicesAmt>
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        <ProgramServicesAmt>9052</ProgramServicesAmt>
        <ManagementAndGeneralAmt>178</ManagementAndGeneralAmt>
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      <OtherExpensesGrp>
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        <ManagementAndGeneralAmt>2900</ManagementAndGeneralAmt>
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        <ProgramServicesAmt>7445968</ProgramServicesAmt>
        <ManagementAndGeneralAmt>873865</ManagementAndGeneralAmt>
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        <EOYAmt>894903</EOYAmt>
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        <EOYAmt>492206</EOYAmt>
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      <PrepaidExpensesDefrdChargesGrp>
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        <EOYAmt>589519</EOYAmt>
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      <LandBldgEquipBasisNetGrp>
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        <EOYAmt>83580</EOYAmt>
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      <InvestmentsPubTradedSecGrp>
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        <EOYAmt>9908645</EOYAmt>
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        <EOYAmt>11968853</EOYAmt>
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        <EOYAmt>553202</EOYAmt>
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        <EOYAmt>2609308</EOYAmt>
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        <EOYAmt>3162510</EOYAmt>
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        <EOYAmt>8611343</EOYAmt>
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      <DonorRestrictionNetAssetsGrp>
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        <EOYAmt>195000</EOYAmt>
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        <EOYAmt>11968853</EOYAmt>
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        <CurrentTaxYearMinus2YearsAmt>1269247</CurrentTaxYearMinus2YearsAmt>
        <CurrentTaxYearMinus1YearAmt>975514</CurrentTaxYearMinus1YearAmt>
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        <CurrentTaxYearAmt>5640173</CurrentTaxYearAmt>
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        <CurrentTaxYearMinus1YearAmt>6967230</CurrentTaxYearMinus1YearAmt>
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        <CurrentTaxYearMinus1YearAmt>1502996</CurrentTaxYearMinus1YearAmt>
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        <CurrentTaxYearMinus3YearsAmt>142532</CurrentTaxYearMinus3YearsAmt>
        <CurrentTaxYearMinus2YearsAmt>217448</CurrentTaxYearMinus2YearsAmt>
        <CurrentTaxYearMinus1YearAmt>229143</CurrentTaxYearMinus1YearAmt>
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      <InvestmentIncomeAndUBTIGrp>
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        <CurrentTaxYearMinus3YearsAmt>142532</CurrentTaxYearMinus3YearsAmt>
        <CurrentTaxYearMinus2YearsAmt>217448</CurrentTaxYearMinus2YearsAmt>
        <CurrentTaxYearMinus1YearAmt>229143</CurrentTaxYearMinus1YearAmt>
        <CurrentTaxYearAmt>683755</CurrentTaxYearAmt>
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        <FormAndLineReferenceDesc>FORM 990, PART VI, SECTION A, LINE 3</FormAndLineReferenceDesc>
        <ExplanationTxt>ASTCT DELEGATED THE MANAGEMENT OF ITS DAILY OPERATIONS TO SMITHBUCKLIN CORPORATION IN CHICAGO. SMITHBUCKLIN CORPORATION IS A MANAGEMENT COMPANY WHICH MANAGES ALL ASPECTS OF THE ASSOCIATION IN ACCORDANCE WITH ASTCT'S BYLAWS AND POLICIES. OPERATIONS MAY INCLUDE, BUT ARE NOT LIMITED TO, ADMINISTRATION, MEMBERSHIP, FINANCE AND ACCOUNTING, EVENT PLANNING, EDUCATION, MARKETING, INFORMATION TECHNOLOGY, AND GOVERNANCE RELATIONS. SMITHBUCKLIN CORPORATION EMPLOYEES PROVIDE THESE SERVICES. THE ORGANIZATION PAID $345,000 IN 2023 FOR THE SERVICES OF THE EXECUTIVE DIRECTOR, WHOM IS EMPLOYED BY THE SMITHBUCKLIN CORPORATION.</ExplanationTxt>
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        <FormAndLineReferenceDesc>FORM 990, PART VI, SECTION A, LINE 6</FormAndLineReferenceDesc>
        <ExplanationTxt>ASTCT HAS THE FOLLOWING CLASSES OF MEMBERSHIP: MEMBER, ASSOCIATE MEMBER, INTRAINING MEMBER, AFFILIATE MEMBER, AFFILIATE INSTITUTIONAL MEMBER, INTERNATIONAL MEMBER, EMERITUS MEMBER, AND HONORARY MEMBER. ONLY MEMBERS (AND HONORARY MEMBERS IF OTHERWISE QUALIFIED TO BE MEMBERS) ARE ENTITLED TO VOTE OF MATTERS SUBMITTED TO A VOTE OF THE MEMBERS. TO QUALIFY AS A MEMBER, AN APPLICANT SHALL HOLD AN MD OR PHD DEGREE, OR EQUIVALENT WITH DEMONSTRATED EXPERTISE IN MARROW TRANSPLANTATION AS EVIDENCED BY EITHER THE PUBLICATION OF TWO PAPERS ON MARROW TRANSPLANTATION-RELATED RESEARCH AS RECORDED BY CURRICULUM VITAE OR DOCUMENTATION OF TWO YEARS OF EXPERIENCE IN CLINICAL TRANSPLANTATION AS RECORDED BY CURRICULUM VITAE AND LETTER FROM THE DIRECTOR OF A TRANSPLANT CENTER ATTESTING TO THE EXPERIENCE OF THE CANDIDATE.</ExplanationTxt>
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      <SupplementalInformationDetail>
        <FormAndLineReferenceDesc>FORM 990, PART VI, SECTION B, LINE 11B</FormAndLineReferenceDesc>
        <ExplanationTxt>ASTCT'S FORM 990 IS PREPARED BY INDEPENDENT PUBLIC ACCOUNTANTS AND SUBMITTED TO ITS MANAGEMENT COMPANY FOR INITIAL REVIEW. THE FORM IS THEN SUBMITTED TO ASTCT'S TREASURER AND EXECUTIVE COMMITTEE FOR REVIEW AND DISCUSSION PRIOR TO FILING.</ExplanationTxt>
      </SupplementalInformationDetail>
      <SupplementalInformationDetail>
        <FormAndLineReferenceDesc>FORM 990, PART VI, SECTION B, LINE 12C</FormAndLineReferenceDesc>
        <ExplanationTxt>DIRECTORS AFFIRM THEIR ENDORSEMENT OF ASTCT'S CODE OF ETHICS AND CONFLICT OF INTEREST POLICY UPON ACCEPTING AND RETAINING OFFICE.</ExplanationTxt>
      </SupplementalInformationDetail>
      <SupplementalInformationDetail>
        <FormAndLineReferenceDesc>FORM 990, PART VI, SECTION C, LINE 19</FormAndLineReferenceDesc>
        <ExplanationTxt>THE ORGANIZATION MAKES ITS GOVERNING DOCUMENTS AND CONFLICT OF INTEREST POLICY AVAILABLE TO THE PUBLIC UPON WRITTEN REQUEST.</ExplanationTxt>
      </SupplementalInformationDetail>
      <SupplementalInformationDetail>
        <FormAndLineReferenceDesc>FORM 990, PART XII, LINE 2C:</FormAndLineReferenceDesc>
        <ExplanationTxt>ASTCT'S BOARD OF DIRECTORS IS RESPONSIBLE FOR THE OVERSIGHT OF THE AUDIT AND SELECTION OF AN INDEPENDENT ACCOUNTANT. THIS PROCESS HAS NOT CHANGED FROM PRIOR YEARS.</ExplanationTxt>
      </SupplementalInformationDetail>
    </IRS990ScheduleO>
  </ReturnData>
</Return>