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        <TitleTxt>CO-CHAIR, IC COMMITTEE</TitleTxt>
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        <PersonNm>SHARON DELL MD ATSF</PersonNm>
        <TitleTxt>CHAIR, ASSEMBLY OF PEDIATRICS</TitleTxt>
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        <PersonNm>PATRICK NANA-SINKAM MD</PersonNm>
        <TitleTxt>CHAIR, ASSEMBLY ON THORACIC ONCOLOGY</TitleTxt>
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        <PersonNm>TISHA WANG MD ATSF</PersonNm>
        <TitleTxt>ASSEMBLY CHAIR, EDUCATION COMMITTEE</TitleTxt>
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        <PersonNm>REENA MEHRA MD ATSF</PersonNm>
        <TitleTxt>CHAIR, ASSEMBLY ON SLEEP</TitleTxt>
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        <IndividualTrusteeOrDirectorInd>X</IndividualTrusteeOrDirectorInd>
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        <PersonNm>GREGORY P DOWNEY MD ATSF</PersonNm>
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        <PersonNm>LYNN SCHNAPP MD ATSF</PersonNm>
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        <PersonNm>ANNE SPERLING PHD ATSF</PersonNm>
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        <PersonNm>ILONA JASPERS PHD ATSF</PersonNm>
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      <Form990PartVIISectionAGrp>
        <PersonNm>MANOJ MAMMEN MD ATSF</PersonNm>
        <TitleTxt>CHAIR, CCR UNTIL MAY</TitleTxt>
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        <PersonNm>MICHELE MANION</PersonNm>
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        <PersonNm>MICHELLE GONG MS MD</PersonNm>
        <TitleTxt>ASSEMBLY CHAIR UNTIL MAY</TitleTxt>
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        <PersonNm>SALLY SINGH PHD</PersonNm>
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        <PersonNm>THEODORE REISS MD MBE ATSF</PersonNm>
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        <PersonNm>TIM LAHM MD ATSF</PersonNm>
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        <PersonNm>YOLANDA MAGETO MD MPH ATSF</PersonNm>
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        <PersonNm>CHARLES S DELA CRUZ MD PHD ATSF</PersonNm>
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        <PersonNm>DEBRA M BOYER MD MPHE</PersonNm>
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        <PersonNm>ENID NEPTUNE MD ATSF</PersonNm>
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        <PersonNm>JANETTE BURGESS PHD ATSF</PersonNm>
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        <PersonNm>JILL GUTTORMSON MD PHD RN</PersonNm>
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        <PersonNm>M BRADLEY DRUMMOND MHS MD ATSF</PersonNm>
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        <PersonNm>ROBERT M TIGHE MD ATSF</PersonNm>
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        <PersonNm>ALISON K BAUER PHD ATSF</PersonNm>
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        <PersonNm>ANGELA ROGERS MD MPH ATSF</PersonNm>
        <TitleTxt>ASSEMBLY CHAIR FROM MAY</TitleTxt>
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        <PersonNm>C TERRI HOUGH MD MSC ATSF</PersonNm>
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        <PersonNm>CHRISTOPHER G SLATORE MD MS</PersonNm>
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        <PersonNm>DONNA APPELL RN</PersonNm>
        <TitleTxt>CHAIR, ATS PA FROM MAY</TitleTxt>
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        <PersonNm>JUAN P WISNIVESKY MD DRPH</PersonNm>
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        <PersonNm>MESHELL JOHNSON MD</PersonNm>
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      <Form990PartVIISectionAGrp>
        <PersonNm>NI-CHENG LIANG MD ATSF</PersonNm>
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        <PersonNm>RACHAEL EVANS MBCHB FRCP PHD</PersonNm>
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        <PersonNm>RAED DWEIK MD MBA ATSF</PersonNm>
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        <OfficerInd>X</OfficerInd>
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        <PersonNm>ROBERT L OWENS MD ATSF</PersonNm>
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      <Form990PartVIISectionAGrp>
        <PersonNm>TERRI A LAGUNA MD MSCI ATSF</PersonNm>
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        <PersonNm>VINICIO A DE JESUS PEREZ MD FCCP</PersonNm>
        <TitleTxt>ASSEMBLY CHAIR FROM MAY</TitleTxt>
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        <PersonNm>KAREN COLLISHAW</PersonNm>
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        <PersonNm>PATRICIA HUIE</PersonNm>
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        <PersonNm>CARRIE SMITH</PersonNm>
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      <Form990PartVIISectionAGrp>
        <PersonNm>MICHELLE TURENNE</PersonNm>
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        <PersonNm>KEVIN WILSON</PersonNm>
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        <PersonNm>GARY EWART</PersonNm>
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        <PersonNm>DIANE GERN</PersonNm>
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        <PersonNm>CRISTINA RODRIGUES BRAZ</PersonNm>
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        <PersonNm>SHANE MCDERMOTT</PersonNm>
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        <ReportableCompFromRltdOrgAmt>0</ReportableCompFromRltdOrgAmt>
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      <FormerOfcrEmployeesListedInd>1</FormerOfcrEmployeesListedInd>
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          <USAddress>
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      <ContractorCompensationGrp>
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        <CurrentTaxYearMinus2YearsAmt>907723</CurrentTaxYearMinus2YearsAmt>
        <CurrentTaxYearMinus1YearAmt>582845</CurrentTaxYearMinus1YearAmt>
        <CurrentTaxYearAmt>646019</CurrentTaxYearAmt>
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      </NetIncomeFromOtherUBIGrp>
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        <CurrentTaxYearMinus4YearsAmt>22899</CurrentTaxYearMinus4YearsAmt>
        <CurrentTaxYearMinus3YearsAmt>7768447</CurrentTaxYearMinus3YearsAmt>
        <TotalAmt>7791346</TotalAmt>
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        <CurrentTaxYearMinus3YearsAmt>28718378</CurrentTaxYearMinus3YearsAmt>
        <CurrentTaxYearMinus2YearsAmt>20742432</CurrentTaxYearMinus2YearsAmt>
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      <PublicSupportPY509Pct>0.82290</PublicSupportPY509Pct>
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      <InvestmentIncomePYPct>0.04260</InvestmentIncomePYPct>
      <ThirtyThrPctSuprtTestsCY509Ind>X</ThirtyThrPctSuprtTestsCY509Ind>
      <Form990ScheduleAPartVIGrp>
        <FormAndLineReferenceDesc>SCHEDULE A, PART III, LINE 12, EXPLANATION OF OTHER INCOME:</FormAndLineReferenceDesc>
        <ExplanationTxt>MEMBER LIST RENTAL - 2019 AMOUNT: $ 22,899. ACQUISTION OF ATS FOUNDATION - 2020 AMOUNT: $ 7,768,447.</ExplanationTxt>
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    <IRS990ScheduleB documentId="RetDoc1234500001">
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          <BusinessNameLine1>RESTRICTED</BusinessNameLine1>
        </ContributorBusinessName>
        <ContributorUSAddress>
          <AddressLine1>RESTRICTED</AddressLine1>
          <AddressLine2>RESTRICTED</AddressLine2>
          <City>RESTRICTED</City>
          <State>RESTRICTED</State>
          <ZIPCode>RESTRICTED</ZIPCode>
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        <TotalContributionsAmt>RESTRICTED</TotalContributionsAmt>
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      <PaidStaffOrManagementInd>1</PaidStaffOrManagementInd>
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      <MailingsMembersInd>1</MailingsMembersInd>
      <MailingsMembersAmt>6123</MailingsMembersAmt>
      <PublicationsOrBroadcastInd>0</PublicationsOrBroadcastInd>
      <GrantsOtherOrganizationsInd>0</GrantsOtherOrganizationsInd>
      <DirectContactLegislatorsInd>1</DirectContactLegislatorsInd>
      <DirectContactLegislatorsAmt>175518</DirectContactLegislatorsAmt>
      <RalliesDemonstrationsInd>0</RalliesDemonstrationsInd>
      <OtherActivitiesInd>0</OtherActivitiesInd>
      <TotalLobbyingExpendituresAmt>181641</TotalLobbyingExpendituresAmt>
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      <SupplementalInformationDetail>
        <FormAndLineReferenceDesc>PART II-B, LINE 1:</FormAndLineReferenceDesc>
        <ExplanationTxt>VOLUNTEERS - ATS COORDINATES AND SUPPORTS ATS MEMBERS CONTACTING MEMBERS OF CONGRESS AND EXECUTIVE AGENCIES TO SPEAK ON ISSUES THAT IMPACT PULMONARY, CRITICAL CARE, AND SLEEP MEDICINE. VOLUNTEER ACTIVITIES INCLUDE CONGRESSIONAL TESTIMONY, VISITING MEMBERS OF CONGRESS AND THEIR STAFF, MEETING WITH ADMINISTRATION OFFICIALS, AGENCY FIELD HEARINGS, AND COORDINATION WITH SISTER SOCIETIES. PAID STAFF - STAFF ENGAGE IN ADVOCACY ACTIVITIES INCLUDING CONGRESSIONAL TESTIMONY, VISITING MEMBERS OF CONGRESS AND THEIR STAFF, MEETING WITH ADMINISTRATION OFFICIALS, AGENCY FIELD HEARINGS, AND COORDINATION WITH SISTER SOCIETIES. MAILINGS - ATS SUBMITS MASS MAILINGS, MASS EMAILS, AND BLAST FAX TO CONGRESS TO ENSURE THEY ARE AWARE OF ATS' POSITIONS ON KEY LEGISLATIVE PRIORITIES. DIRECT CONTACT WITH LEGISLATORS, THEIR STAFF, GOVERNMENT OFFICIALS OR A LEGISLATIVE BODY - ATS MEMBERS AND STAFF MEET WITH OFFICIALS TO ADVOCATE FOR PULMONARY, CRITICAL CARE, AND SLEEP HEALTH.</ExplanationTxt>
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      <TotalBookValueLandBuildingsAmt>1032822</TotalBookValueLandBuildingsAmt>
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        <Desc>OPERATING LEASE RIGHT OF USE ASSETS</Desc>
        <BookValueAmt>16627156</BookValueAmt>
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      <OtherLiabilitiesOrgGrp>
        <Desc>OPERATING LEASE LIABILITY</Desc>
        <Amt>18843966</Amt>
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      <FootnoteTextInd>X</FootnoteTextInd>
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      <RevenueNotReportedFinclStmtAmt>119407</RevenueNotReportedFinclStmtAmt>
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      <ExpensesNotRptFinclStmtAmt>236195</ExpensesNotRptFinclStmtAmt>
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      <SupplementalInformationDetail>
        <FormAndLineReferenceDesc>PART IV, LINE 2B:</FormAndLineReferenceDesc>
        <ExplanationTxt>ATS COLLECTS DONATIONS AND MAKES DISBURSEMENTS FOR COSTS RELATED TO ITS AFFILIATED CHAPTERS. ATS IS ALSO THE COORDINATOR FOR A GROUP OF TAX-EXEMPT ORGANIZATIONS THAT ARE COLLABORATING TO SUPPORT THE HAROLD AMOS MEDICAL FACULTY DEVELOPMENT PROGRAM (AMFDP).</ExplanationTxt>
      </SupplementalInformationDetail>
      <SupplementalInformationDetail>
        <FormAndLineReferenceDesc>PART V, LINE 4:</FormAndLineReferenceDesc>
        <ExplanationTxt>THE INTENDED USE OF THE SOCIETY'S ENDOWMENT FUNDS ARE TO SUPPORT GRANTS AND TRAINING ASSOCIATED WITH THE SOCIETY'S VARIOUS PROGRAMS.</ExplanationTxt>
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      <SupplementalInformationDetail>
        <FormAndLineReferenceDesc>PART X, LINE 2:</FormAndLineReferenceDesc>
        <ExplanationTxt>ATS COMPLIES WITH THE PROVISIONS OF FASB ASC TOPIC 740, ACCOUNTING FOR UNCERTAINTY IN INCOME TAXES, WHICH ADDRESSES THE DETERMINATION OF WHETHER TAX BENEFITS CLAIMED OR EXPECTED TO BE CLAIMED ON A TAX RETURN SHOULD BE RECORDED IN THE FINANCIAL STATEMENTS. MANAGEMENT EVALUATED ATS'S TAX POSITIONS AND CONCLUDED THAT ATS HAD TAKEN NO UNCERTAIN TAX POSITIONS THAT REQUIRE ADJUSTMENT TO THE FINANCIAL STATEMENTS TO COMPLY WITH THE PROVISIONS OF THIS GUIDANCE. FOR THE YEAR ENDED DECEMBER 31, 2023, NO UNRECOGNIZED TAX PROVISION OR BENEFIT EXISTS IN THE ACCOMPANYING FINANCIAL STATEMENTS.</ExplanationTxt>
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      <SupplementalInformationDetail>
        <FormAndLineReferenceDesc>PART XI, LINE 4B - OTHER ADJUSTMENTS:</FormAndLineReferenceDesc>
        <ExplanationTxt>DIRECT EXPENSES FOR FUNDRAISING EVENT -116,788.</ExplanationTxt>
      </SupplementalInformationDetail>
      <SupplementalInformationDetail>
        <FormAndLineReferenceDesc>PART XII, LINE 2D - OTHER ADJUSTMENTS:</FormAndLineReferenceDesc>
        <ExplanationTxt>DIRECT EXPENSES FOR FUNDRAISING EVENT 116,788. OTHER LOSSES 66,412.</ExplanationTxt>
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        <EmployeeCnt>0</EmployeeCnt>
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        <EmployeeCnt>0</EmployeeCnt>
        <TypeOfActivitiesConductedTxt>PROGRAM SERVICES</TypeOfActivitiesConductedTxt>
        <SpecificServicesProvidedTxt>EDITORS</SpecificServicesProvidedTxt>
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      <AccountActivitiesOutsideUSGrp>
        <RegionTxt>EUROPE (INCLUDING ICELAND &amp; GREENLAND) - ALBANIA, ANDORRA, AUSTRIA, BELGIUM</RegionTxt>
        <OfficesCnt>0</OfficesCnt>
        <EmployeeCnt>0</EmployeeCnt>
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      <AccountActivitiesOutsideUSGrp>
        <RegionTxt>EUROPE (INCLUDING ICELAND &amp; GREENLAND) - ALBANIA, ANDORRA, AUSTRIA, BELGIUM</RegionTxt>
        <OfficesCnt>0</OfficesCnt>
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      <AccountActivitiesOutsideUSGrp>
        <RegionTxt>EUROPE (INCLUDING ICELAND &amp; GREENLAND) - ALBANIA, ANDORRA, AUSTRIA, BELGIUM</RegionTxt>
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        <TypeOfActivitiesConductedTxt>PROGRAM SERVICES</TypeOfActivitiesConductedTxt>
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      <AccountActivitiesOutsideUSGrp>
        <RegionTxt>EUROPE (INCLUDING ICELAND &amp; GREENLAND) - ALBANIA, ANDORRA, AUSTRIA, BELGIUM</RegionTxt>
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      <AccountActivitiesOutsideUSGrp>
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      <AccountActivitiesOutsideUSGrp>
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        <RegionTxt>NORTH AMERICA - CANADA AND MEXICO, BUT NOT THE UNITED STATES</RegionTxt>
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        <TypeOfActivitiesConductedTxt>GRANTS AND AWARDS</TypeOfActivitiesConductedTxt>
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      <AccountActivitiesOutsideUSGrp>
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      <AccountActivitiesOutsideUSGrp>
        <RegionTxt>NORTH AMERICA - CANADA AND MEXICO, BUT NOT THE UNITED STATES</RegionTxt>
        <OfficesCnt>0</OfficesCnt>
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      <AccountActivitiesOutsideUSGrp>
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        <TypeOfAssistanceTxt>TECHNICAL ASSISTANCE GRANT</TypeOfAssistanceTxt>
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        <TypeOfAssistanceTxt>TECHNICAL ASSISTANCE GRANT</TypeOfAssistanceTxt>
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      <ForeignIndividualsGrantsGrp>
        <TypeOfAssistanceTxt>TECHNICAL ASSISTANCE GRANT</TypeOfAssistanceTxt>
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      <ForeignIndividualsGrantsGrp>
        <TypeOfAssistanceTxt>TECHNICAL ASSISTANCE GRANT</TypeOfAssistanceTxt>
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      <ForeignIndividualsGrantsGrp>
        <TypeOfAssistanceTxt>TECHNICAL ASSISTANCE AND RESEARCH GRANT</TypeOfAssistanceTxt>
        <RegionTxt>SUB-SAHARAN AFRICA - ANGOLA, BENIN, BOTSWANA, BURKINA FASO,</RegionTxt>
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      <InterestInForeignTrustInd>0</InterestInForeignTrustInd>
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      <ForeignPartnershipInd>0</ForeignPartnershipInd>
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      <SupplementalInformationDetail>
        <FormAndLineReferenceDesc>PART I, LINE 2:</FormAndLineReferenceDesc>
        <ExplanationTxt>THE ORGANIZATION REQUIRES A WRITTEN MID-POINT PROGRESS REPORT TO BE SUBMITTED BY THE RECIPIENT, BRIEFLY DESCRIBING THE RESEARCH CONDUCTED TO DATE, INDICATING THE CURRENT STAGE OF COMPLETENESS ACCORDING TO THE TIMELINE ORIGINALLY SUBMITTED WITH THE PROPOSAL, PROBLEMS ENCOUNTERED WITH THE PROGRESS OF THE STUDY IF ANY, AND EFFORTS MADE TO OVERCOME SUCH PROBLEMS. A FINAL REPORT IS DUE NO LATER THAN 30 DAYS AFTER THE INDICATED COMPLETION DATE OF THE PROJECT OUTLINING THE PROGRESS MADE IN ACCOMPLISHING THE PURPOSE OF THE GRANT. IN ADDITION, A ONE PAGE EXECUTIVE SUMMARY WRITTEN SPECIFICALLY FOR A NON-MEDICAL AUDIENCE IS INCLUDED WITH THE FINAL REPORT. THE SUMMARY INCLUDES A BRIEF BACKGROUND, STATEMENT OF THE PURPOSE OF THE STUDY, A BASIC DESCRIPTION OF THE METHODOLOGY, IMPORTANT FINDINGS, AND A CONCLUSION OR SUMMARY STATEMENT ABOUT THE RELEVANCE OF THE FINDINGS. THE RESEARCH IS SUBMITTED TO THE ORGANIZATION FOR PRESENTATION AT THE ANNUAL MEETING FOLLOWING COMPLETION OF THE STUDY. A FINAL FINANCIAL REPORT IS REQUIRED TO BE SUBMITTED 90 DAYS AFTER THE PROJECT END DATE. ALL UNEXPENDED FUNDS MUST BE RETURNED TO THE ORGANIZATION ALONG WITH THE FINAL ACCOUNTING REPORT. PAYMENTS FOR SUBSEQUENT GRANTS WILL BE CONTINGENT ON RECEIPT OF ANY OUTSTANDING FINAL ACCOUNTING REPORTS AND REFUNDS, AS APPLICABLE.</ExplanationTxt>
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      <SupplementalInformationDetail>
        <FormAndLineReferenceDesc>PART I, LINE 3:</FormAndLineReferenceDesc>
        <ExplanationTxt>ACCRUAL ACCOUNTING</ExplanationTxt>
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      <SupplementalInformationDetail>
        <FormAndLineReferenceDesc>PART III, COL (C):</FormAndLineReferenceDesc>
        <ExplanationTxt>ESTIMATED NUMBER OF RECIPIENTS IS BASED ON APPROVED AWARDS ACCEPTED.</ExplanationTxt>
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        <Event1Nm>ANNUAL RESEARCH PROGRAM BENEFIT</Event1Nm>
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        <CharitableContriEvent1Amt>290000</CharitableContriEvent1Amt>
        <GrossRevenueEvent1Amt>82350</GrossRevenueEvent1Amt>
        <FoodAndBeverageEvent1Amt>100590</FoodAndBeverageEvent1Amt>
        <OtherDirectExpensesEvent1Amt>16198</OtherDirectExpensesEvent1Amt>
        <GrossReceiptsTotalAmt>372350</GrossReceiptsTotalAmt>
        <CharitableContributionsTotAmt>290000</CharitableContributionsTotAmt>
        <GrossRevenueTotalEventsAmt>82350</GrossRevenueTotalEventsAmt>
        <FoodAndBeverageTotalEventsAmt>100590</FoodAndBeverageTotalEventsAmt>
        <OthDirectExpnssTotalEventsAmt>16198</OthDirectExpnssTotalEventsAmt>
        <DirectExpenseSummaryEventsAmt>116788</DirectExpenseSummaryEventsAmt>
        <NetIncomeSummaryAmt>-34438</NetIncomeSummaryAmt>
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        <GrantTypeTxt>TECHNICAL ASSISTANCE GRANTS</GrantTypeTxt>
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        <CashGrantAmt>417614</CashGrantAmt>
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      <GrantsOtherAsstToIndivInUSGrp>
        <GrantTypeTxt>RESEARCH GRANTS</GrantTypeTxt>
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        <CashGrantAmt>941510</CashGrantAmt>
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      <SupplementalInformationDetail>
        <FormAndLineReferenceDesc>PART I, LINE 2:</FormAndLineReferenceDesc>
        <ExplanationTxt>THE ORGANIZATION REQUIRES A WRITTEN MID-POINT PROGRESS REPORT TO BE SUBMITTED BY THE RECIPIENT, BRIEFLY DESCRIBING THE RESEARCH CONDUCTED TO DATE, INDICATING THE CURRENT STAGE OF COMPLETENESS ACCORDING TO THE TIMELINE ORIGINALLY SUBMITTED WITH THE PROPOSAL, PROBLEMS ENCOUNTERED WITH THE PROGRESS OF THE STUDY IF ANY, AND EFFORTS MADE TO OVERCOME SUCH PROBLEMS. A FINAL REPORT IS DUE NO LATER THAN 30 DAYS AFTER THE INDICATED COMPLETION DATE OF THE PROJECT OUTLINING THE PROGRESS MADE IN ACCOMPLISHING THE PURPOSE OF THE GRANT. IN ADDITION, A ONE PAGE EXECUTIVE SUMMARY WRITTEN SPECIFICALLY FOR A NON-MEDICAL AUDIENCE IS INCLUDED WITH THE FINAL REPORT. THE SUMMARY INCLUDES A BRIEF BACKGROUND, STATEMENT OF THE PURPOSE OF THE STUDY, A BASIC DESCRIPTION OF THE METHODOLOGY, IMPORTANT FINDINGS, AND A CONCLUSION OR SUMMARY STATEMENT ABOUT THE RELEVANCE OF THE FINDINGS. THE RESEARCH IS SUBMITTED TO THE ORGANIZATION FOR PRESENTATION AT THE ANNUAL MEETING FOLLOWING COMPLETION OF THE STUDY. A FINAL FINANCIAL REPORT IS REQUIRED TO BE SUBMITTED 90 DAYS AFTER THE PROJECT END DATE. ALL UNEXPENDED FUNDS MUST BE RETURNED TO THE ORGANIZATION ALONG WITH THE FINAL ACCOUNTING REPORT. PAYMENTS FOR SUBSEQUENT GRANTS WILL BE CONTINGENT ON RECEIPT OF ANY OUTSTANDING FINAL ACCOUNTING REPORTS AND REFUNDS, AS APPLICABLE.</ExplanationTxt>
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      <Form990OfOtherOrganizationsInd>X</Form990OfOtherOrganizationsInd>
      <CompensationSurveyInd>X</CompensationSurveyInd>
      <BoardOrCommitteeApprovalInd>X</BoardOrCommitteeApprovalInd>
      <SeverancePaymentInd>0</SeverancePaymentInd>
      <SupplementalNonqualRtrPlanInd>0</SupplementalNonqualRtrPlanInd>
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      <CompBasedOnRevenueOfFlngOrgInd>0</CompBasedOnRevenueOfFlngOrgInd>
      <CompBsdOnRevRelatedOrgsInd>0</CompBsdOnRevRelatedOrgsInd>
      <CompBsdNetEarnsFlngOrgInd>0</CompBsdNetEarnsFlngOrgInd>
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        <TitleTxt>CHIEF EXECUTIVE DIRECTOR</TitleTxt>
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        <CompensationBasedOnRltdOrgsAmt>0</CompensationBasedOnRltdOrgsAmt>
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        <TotalCompensationFilingOrgAmt>542512</TotalCompensationFilingOrgAmt>
        <TotalCompensationRltdOrgsAmt>0</TotalCompensationRltdOrgsAmt>
        <CompReportPrior990FilingOrgAmt>0</CompReportPrior990FilingOrgAmt>
        <CompReportPrior990RltdOrgsAmt>0</CompReportPrior990RltdOrgsAmt>
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      <RltdOrgOfficerTrstKeyEmplGrp>
        <PersonNm>KEVIN WILSON</PersonNm>
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        <CompReportPrior990RltdOrgsAmt>0</CompReportPrior990RltdOrgsAmt>
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      <RltdOrgOfficerTrstKeyEmplGrp>
        <PersonNm>CARRIE SMITH</PersonNm>
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        <CompensationBasedOnRltdOrgsAmt>0</CompensationBasedOnRltdOrgsAmt>
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        <OtherCompensationRltdOrgsAmt>0</OtherCompensationRltdOrgsAmt>
        <DeferredCompensationFlngOrgAmt>7873</DeferredCompensationFlngOrgAmt>
        <DeferredCompRltdOrgsAmt>0</DeferredCompRltdOrgsAmt>
        <NontaxableBenefitsFilingOrgAmt>35105</NontaxableBenefitsFilingOrgAmt>
        <NontaxableBenefitsRltdOrgsAmt>0</NontaxableBenefitsRltdOrgsAmt>
        <TotalCompensationFilingOrgAmt>298787</TotalCompensationFilingOrgAmt>
        <TotalCompensationRltdOrgsAmt>0</TotalCompensationRltdOrgsAmt>
        <CompReportPrior990FilingOrgAmt>0</CompReportPrior990FilingOrgAmt>
        <CompReportPrior990RltdOrgsAmt>0</CompReportPrior990RltdOrgsAmt>
      </RltdOrgOfficerTrstKeyEmplGrp>
      <RltdOrgOfficerTrstKeyEmplGrp>
        <PersonNm>PATRICIA HUIE</PersonNm>
        <TitleTxt>CHIEF, FINANCIAL OFFICER</TitleTxt>
        <BaseCompensationFilingOrgAmt>248100</BaseCompensationFilingOrgAmt>
        <CompensationBasedOnRltdOrgsAmt>0</CompensationBasedOnRltdOrgsAmt>
        <BonusFilingOrganizationAmount>0</BonusFilingOrganizationAmount>
        <BonusRelatedOrganizationsAmt>0</BonusRelatedOrganizationsAmt>
        <OtherCompensationFilingOrgAmt>0</OtherCompensationFilingOrgAmt>
        <OtherCompensationRltdOrgsAmt>0</OtherCompensationRltdOrgsAmt>
        <DeferredCompensationFlngOrgAmt>14997</DeferredCompensationFlngOrgAmt>
        <DeferredCompRltdOrgsAmt>0</DeferredCompRltdOrgsAmt>
        <NontaxableBenefitsFilingOrgAmt>22883</NontaxableBenefitsFilingOrgAmt>
        <NontaxableBenefitsRltdOrgsAmt>0</NontaxableBenefitsRltdOrgsAmt>
        <TotalCompensationFilingOrgAmt>285980</TotalCompensationFilingOrgAmt>
        <TotalCompensationRltdOrgsAmt>0</TotalCompensationRltdOrgsAmt>
        <CompReportPrior990FilingOrgAmt>0</CompReportPrior990FilingOrgAmt>
        <CompReportPrior990RltdOrgsAmt>0</CompReportPrior990RltdOrgsAmt>
      </RltdOrgOfficerTrstKeyEmplGrp>
      <RltdOrgOfficerTrstKeyEmplGrp>
        <PersonNm>GARY EWART</PersonNm>
        <TitleTxt>CHIEF, ADVOCACY &amp; GOVERNME</TitleTxt>
        <BaseCompensationFilingOrgAmt>210525</BaseCompensationFilingOrgAmt>
        <CompensationBasedOnRltdOrgsAmt>0</CompensationBasedOnRltdOrgsAmt>
        <BonusFilingOrganizationAmount>0</BonusFilingOrganizationAmount>
        <BonusRelatedOrganizationsAmt>0</BonusRelatedOrganizationsAmt>
        <OtherCompensationFilingOrgAmt>0</OtherCompensationFilingOrgAmt>
        <OtherCompensationRltdOrgsAmt>0</OtherCompensationRltdOrgsAmt>
        <DeferredCompensationFlngOrgAmt>13490</DeferredCompensationFlngOrgAmt>
        <DeferredCompRltdOrgsAmt>0</DeferredCompRltdOrgsAmt>
        <NontaxableBenefitsFilingOrgAmt>49878</NontaxableBenefitsFilingOrgAmt>
        <NontaxableBenefitsRltdOrgsAmt>0</NontaxableBenefitsRltdOrgsAmt>
        <TotalCompensationFilingOrgAmt>273893</TotalCompensationFilingOrgAmt>
        <TotalCompensationRltdOrgsAmt>0</TotalCompensationRltdOrgsAmt>
        <CompReportPrior990FilingOrgAmt>0</CompReportPrior990FilingOrgAmt>
        <CompReportPrior990RltdOrgsAmt>0</CompReportPrior990RltdOrgsAmt>
      </RltdOrgOfficerTrstKeyEmplGrp>
      <RltdOrgOfficerTrstKeyEmplGrp>
        <PersonNm>MICHELLE TURENNE</PersonNm>
        <TitleTxt>CHIEF, STRATEGIC ALLIANCES</TitleTxt>
        <BaseCompensationFilingOrgAmt>239917</BaseCompensationFilingOrgAmt>
        <CompensationBasedOnRltdOrgsAmt>0</CompensationBasedOnRltdOrgsAmt>
        <BonusFilingOrganizationAmount>0</BonusFilingOrganizationAmount>
        <BonusRelatedOrganizationsAmt>0</BonusRelatedOrganizationsAmt>
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        <TotalCompensationFilingOrgAmt>273272</TotalCompensationFilingOrgAmt>
        <TotalCompensationRltdOrgsAmt>0</TotalCompensationRltdOrgsAmt>
        <CompReportPrior990FilingOrgAmt>0</CompReportPrior990FilingOrgAmt>
        <CompReportPrior990RltdOrgsAmt>0</CompReportPrior990RltdOrgsAmt>
      </RltdOrgOfficerTrstKeyEmplGrp>
      <RltdOrgOfficerTrstKeyEmplGrp>
        <PersonNm>DIANE GERN</PersonNm>
        <TitleTxt>CHIEF, JOURNALS</TitleTxt>
        <BaseCompensationFilingOrgAmt>219877</BaseCompensationFilingOrgAmt>
        <CompensationBasedOnRltdOrgsAmt>0</CompensationBasedOnRltdOrgsAmt>
        <BonusFilingOrganizationAmount>0</BonusFilingOrganizationAmount>
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        <CompReportPrior990RltdOrgsAmt>0</CompReportPrior990RltdOrgsAmt>
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        <PersonNm>CRISTINA RODRIGUES BRAZ</PersonNm>
        <TitleTxt>MANAGING DIRECTOR, MEMBERSHIP ENGAGE</TitleTxt>
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        <PersonNm>SHANE MCDERMOTT</PersonNm>
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        <FormAndLineReferenceDesc>FORM 990, PART VI, SECTION A, LINE 6</FormAndLineReferenceDesc>
        <ExplanationTxt>ATS HAS 3 MEMBERSHIP CATEGORIES. 1. DOMESTIC A. FULL: FULL DOMESTIC MEMBERS ARE THOSE INDIVIDUALS WHO WISH TO HAVE ALL THE RIGHTS AND PRIVILEGES OF MEMBERSHIP IN THE ATS INCLUDING THE ABILITY TO HOLD OFFICE, VOTE IN ELECTIONS, AND RECEIVE THE GREATEST DISCOUNTS ON ALL PRODUCTS AND SERVICES OFFERED BY THE SOCIETY. B. AFFILIATE: AFFILIATE DOMESTIC MEMBERS ARE INDIVIDUALS WHO ARE NOT PRINCIPALLY PRACTICING OR CONDUCTING RESEARCH IN PULMONARY, CRITICAL CARE OR SLEEP-RELATED MEDICINE BUT WHO WISH TO BE ASSOCIATED WITH THE ATS PROFESSIONALLY AND RECEIVE MORE LIMITED MEMBERSHIP BENEFITS THAN FULL MEMBERS. C. TRAINEE: TRAINEE DOMESTIC MEMBERS ARE ANY INDIVIDUALS WHO ARE ENROLLED IN ANY LEVEL OF TRAINING IN ANY ACCREDITED DEGREE PROGRAM OR DISCIPLINE RELATED TO PULMONARY, CRITICAL CARE AND SLEEP MEDICINE AND WHO WISH TO PARTICIPATE AS FULL MEMBERS DURING THEIR TRAINING YEARS. 2. INTERNATIONAL A. INTERNATIONAL: INDIVIDUALS RESIDING IN COUNTRIES DESIGNATED AS HIGH, UPPER MIDDLE, LOWER MIDDLE AND LOW INCOME BY THE WORLD BANK SHALL PAY A MEMBERSHIP FEE COMMENSURATE WITH THEIR COUNTRY CLASSIFICATION. INDIVIDUALS WHO PAY A REDUCED MEMBERSHIP FEE WILL HAVE THE RIGHTS OF A FULL DOMESTIC MEMBER AS DETERMINED BY THE BOARD OF DIRECTORS. B. TRAINEE: INDIVIDUALS WHO ARE ENROLLED IN ANY LEVEL OF TRAINING IN ANY ACCREDITED DEGREE PROGRAM OR DISCIPLINE WHO SHALL HAVE THE SAME RIGHTS OF MEMBERSHIP AS DOMESTIC TRAINEE MEMBERS. 3. SPECIAL A. SENIOR MEMBER. FULL MEMBERS WHO ARE TOTALLY RETIRED OR INDIVIDUALS WHO HAVE THE PRESENCE OF AN INCOME LIMITING PERMANENT DISABILITY MAY APPLY TO THE MEMBERSHIP COMMITTEE FOR TRANSFER TO SENIOR MEMBERSHIP. SENIOR MEMBERS SHALL HAVE ALL THE PRIVILEGES OF FULL MEMBERS WITH THE EXCEPTION OF HOLDING OFFICE. B. EMERITUS MEMBER. FULL MEMBERS WHO HAVE REACHED THE AGE OF 75, NOT YET RETIRED, MAY APPLY FOR THE STATUS OF EMERITUS MEMBERSHIP. EMERITUS MEMBERS SHALL HAVE ALL THE PRIVILEGES OF FULL MEMBERS. EMERITUS MEMBERS SHALL NOT PAY ANNUAL DUES. C. HONORARY MEMBER. INDIVIDUALS WITH A RECORD OF HIGH ACHIEVEMENT AND SINGULAR CONTRIBUTIONS TO THE FIELDS OF PULMONARY AND/OR CRITICAL CARE MEDICINE AND NURSING MAY BE PROPOSED FOR HONORARY MEMBERSHIP BY ANY MEMBER, AND UPON RECOMMENDATION BY THE MEMBERSHIP COMMITTEE MAY BE ELECTED BY THE MEMBERSHIP OF THE SOCIETY. HONORARY MEMBERS WHO ARE NOT MEMBERS AT THE TIME HONORARY MEMBERSHIP IS CONFERRED, SHALL HAVE ALL THE PRIVILEGES OF FULL MEMBERS WITH THE EXCEPTION OF VOTING AND HOLDING OFFICE. HONORARY MEMBERS SHALL NOT PAY ANNUAL DUES.</ExplanationTxt>
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        <FormAndLineReferenceDesc>FORM 990, PART VI, SECTION A, LINE 7A</FormAndLineReferenceDesc>
        <ExplanationTxt>ALL OF THE OFFICERS OF ATS ARE ELECTED BY THE MEMBERS OF ATS ENTITLED TO VOTE, WITH THE EXCEPTION OF THE TREASURER AND ADDITIONAL OFFICER POSITIONS CREATED BY THE BOARD.</ExplanationTxt>
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        <FormAndLineReferenceDesc>FORM 990, PART VI, SECTION B, LINE 11B</FormAndLineReferenceDesc>
        <ExplanationTxt>THE 990 IS REVIEWED BY THE FINANCE DEPARTMENT</ExplanationTxt>
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        <FormAndLineReferenceDesc>FORM 990, PART VI, SECTION B, LINE 12C</FormAndLineReferenceDesc>
        <ExplanationTxt>TRUSTEES, DIRECTORS, OFFICERS AND KEY EMPLOYEES ARE REQUIRED TO COMPLETE A CONFLICT OF INTEREST FORM ANNUALLY. ANY DISCLOSURES ARE INVESTIGATED.</ExplanationTxt>
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        <FormAndLineReferenceDesc>FORM 990, PART VI, SECTION B, LINE 15</FormAndLineReferenceDesc>
        <ExplanationTxt>IN ADDITION TO COMPARABILITY DATA, ATS ALSO EXAMINES FOR EACH POSITION, THE INTERNAL GRADE STRUCTURE, WHERE THE POSITION FALLS WITHIN THE GRADE STRUCTURE AND THE TENURE FOR THE POSITION.</ExplanationTxt>
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        <FormAndLineReferenceDesc>FORM 990, PART VI, SECTION C, LINE 19</FormAndLineReferenceDesc>
        <ExplanationTxt>THE ORGANIZATION MAKES ITS GOVERNING DOCUMENTS, CONFLICT OF INTEREST POLICY, AND FINANCIAL STATEMENTS AVAILABLE TO THE PUBLIC UPON REQUEST.</ExplanationTxt>
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      <SupplementalInformationDetail>
        <FormAndLineReferenceDesc>FORM 990, PART IX, LINE 11G</FormAndLineReferenceDesc>
        <ExplanationTxt>TEMP AGENCY FEES: PROGRAM SERVICE EXPENSES 138,775. MANAGEMENT AND GENERAL EXPENSES 77,641. FUNDRAISING EXPENSES 83,662. TOTAL EXPENSES 300,078. BUSINESS PROCESS CONSULTING: PROGRAM SERVICE EXPENSES 91,063. MANAGEMENT AND GENERAL EXPENSES 96,353. FUNDRAISING EXPENSES 9,454. TOTAL EXPENSES 196,870. CONTRACT SERVICES: PROGRAM SERVICE EXPENSES 7,136,520. MANAGEMENT AND GENERAL EXPENSES 53,823. FUNDRAISING EXPENSES 828. TOTAL EXPENSES 7,191,171. EDITORIAL FEES: PROGRAM SERVICE EXPENSES 957,922. MANAGEMENT AND GENERAL EXPENSES 0. FUNDRAISING EXPENSES 0. TOTAL EXPENSES 957,922. STIPENDS: PROGRAM SERVICE EXPENSES 0. MANAGEMENT AND GENERAL EXPENSES 125,186. FUNDRAISING EXPENSES 0. TOTAL EXPENSES 125,186. ADVOCACY: PROGRAM SERVICE EXPENSES 123,254. MANAGEMENT AND GENERAL EXPENSES 0. FUNDRAISING EXPENSES 0. TOTAL EXPENSES 123,254. COMMISSIONS AND DISCOUNTS: PROGRAM SERVICE EXPENSES 561,389. MANAGEMENT AND GENERAL EXPENSES 473. FUNDRAISING EXPENSES 0. TOTAL EXPENSES 561,862. PROFESSIONAL SEARCH: PROGRAM SERVICE EXPENSES 0. MANAGEMENT AND GENERAL EXPENSES 51,995. FUNDRAISING EXPENSES 0. TOTAL EXPENSES 51,995.</ExplanationTxt>
      </SupplementalInformationDetail>
      <SupplementalInformationDetail>
        <FormAndLineReferenceDesc>FORM 990, PART XI, LINE 9:</FormAndLineReferenceDesc>
        <ExplanationTxt>OTHER LOSSES -66,412.</ExplanationTxt>
      </SupplementalInformationDetail>
      <SupplementalInformationDetail>
        <FormAndLineReferenceDesc>B - AMENDED RETURN</FormAndLineReferenceDesc>
        <ExplanationTxt>THE TAX RETURN WAS AMENDED BECAUSE THE ORGINAL RETURN WAS FILED USING UNAUDITED DATA. THE TAX RETURN WAS AMENDED TO MATCH THE AUDITED FINANCIAL DATA. THE FOLLOWING LINES ON THE 990 HAVE BEEN UPDATED: HEADER, BOX L PART III, LINES 4A, 4B, 4C, AND 4D PART IV, LINES 11F AND 12A PART IX, LINE 16 PART X, LINES 9, 27, 28 PART XI, LINES 2, 10 PART XII, LINES 2B, 2C, 3A, AND 3B SCHEDULE D - PARTS X, XI, XII AND XIII SCHEDULE O</ExplanationTxt>
      </SupplementalInformationDetail>
    </IRS990ScheduleO>
  </ReturnData>
</Return>