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      <MethodOfAccountingAccrualInd>X</MethodOfAccountingAccrualInd>
      <AccountantCompileOrReviewInd>false</AccountantCompileOrReviewInd>
      <FSAuditedInd>false</FSAuditedInd>
      <FederalGrantAuditRequiredInd>false</FederalGrantAuditRequiredInd>
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        <CurrentTaxYearMinus1YearAmt>210482</CurrentTaxYearMinus1YearAmt>
        <CurrentTaxYearAmt>203932</CurrentTaxYearAmt>
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        <CurrentTaxYearMinus1YearAmt>68166</CurrentTaxYearMinus1YearAmt>
        <CurrentTaxYearAmt>85075</CurrentTaxYearAmt>
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      <Total509Grp>
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        <CurrentTaxYearMinus3YearsAmt>214085</CurrentTaxYearMinus3YearsAmt>
        <CurrentTaxYearMinus2YearsAmt>284616</CurrentTaxYearMinus2YearsAmt>
        <CurrentTaxYearMinus1YearAmt>278648</CurrentTaxYearMinus1YearAmt>
        <CurrentTaxYearAmt>289007</CurrentTaxYearAmt>
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      <PublicSupportTotal509Amt>1376154</PublicSupportTotal509Amt>
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        <CurrentTaxYearMinus2YearsAmt>76436</CurrentTaxYearMinus2YearsAmt>
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        <CurrentTaxYearAmt>32421</CurrentTaxYearAmt>
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      <PublicSupportPY509Pct>0.80360</PublicSupportPY509Pct>
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      <InvestmentIncomePYPct>0.20000</InvestmentIncomePYPct>
      <ThirtyThrPctSuprtTestsCY509Ind>X</ThirtyThrPctSuprtTestsCY509Ind>
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    <IRS990ScheduleF documentId="RetDoc4">
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        <TypeOfAssistanceTxt>VISITING SCHOLAR</TypeOfAssistanceTxt>
        <RegionTxt>PHILLIPINES</RegionTxt>
        <RecipientCnt>1</RecipientCnt>
        <CashGrantAmt>1500</CashGrantAmt>
        <MannerOfCashDisbursementTxt>CHECK</MannerOfCashDisbursementTxt>
      </ForeignIndividualsGrantsGrp>
      <ForeignIndividualsGrantsGrp>
        <TypeOfAssistanceTxt>TRAVEL GRANTS</TypeOfAssistanceTxt>
        <RegionTxt>ASIA</RegionTxt>
        <RecipientCnt>3</RecipientCnt>
        <CashGrantAmt>6000</CashGrantAmt>
        <MannerOfCashDisbursementTxt>CHECK</MannerOfCashDisbursementTxt>
      </ForeignIndividualsGrantsGrp>
      <ForeignIndividualsGrantsGrp>
        <TypeOfAssistanceTxt>TRAVEL GRANTS</TypeOfAssistanceTxt>
        <RegionTxt>AFRICA</RegionTxt>
        <RecipientCnt>5</RecipientCnt>
        <CashGrantAmt>9700</CashGrantAmt>
        <MannerOfCashDisbursementTxt>CHECK/WIRE</MannerOfCashDisbursementTxt>
      </ForeignIndividualsGrantsGrp>
      <ForeignIndividualsGrantsGrp>
        <TypeOfAssistanceTxt>DPWC WINNER</TypeOfAssistanceTxt>
        <RegionTxt>PHILLIPINES</RegionTxt>
        <RecipientCnt>1</RecipientCnt>
        <CashGrantAmt>400</CashGrantAmt>
        <MannerOfCashDisbursementTxt>CHECK</MannerOfCashDisbursementTxt>
      </ForeignIndividualsGrantsGrp>
      <ForeignIndividualsGrantsGrp>
        <TypeOfAssistanceTxt>FOUNDERS' AWARD WINNER</TypeOfAssistanceTxt>
        <RegionTxt>SPAIN</RegionTxt>
        <RecipientCnt>1</RecipientCnt>
        <CashGrantAmt>4685</CashGrantAmt>
        <MannerOfCashDisbursementTxt>WIRE</MannerOfCashDisbursementTxt>
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      <TransferToForeignCorpInd>false</TransferToForeignCorpInd>
      <InterestInForeignTrustInd>false</InterestInForeignTrustInd>
      <ForeignCorpOwnershipInd>false</ForeignCorpOwnershipInd>
      <PassiveForeignInvestmestCoInd>false</PassiveForeignInvestmestCoInd>
      <ForeignPartnershipInd>false</ForeignPartnershipInd>
      <BoycottCountriesInd>false</BoycottCountriesInd>
      <SupplementalInformationDetail>
        <FormAndLineReferenceDesc>SCHEDULE F, PAGE 1, PART I, LINE 2</FormAndLineReferenceDesc>
        <ExplanationTxt>TRAVEL AWARDS AND VISITING SCHOLAR GRANTS ARE AWARDED EACH YEAR THE JOINT MEETING OR SYMPOSIUM IS HELD. TRAVEL GRANTS ARE INTENDED TO HELP WITH THE COSTS OF TRAVEL AND ATTENDANCE AT ONE OF THE ISDP MEETINGS. NO TRAVEL GRANTS WERE AWARDED IN 2021. VISITING SCHOLAR GRANTS ARE INTENDED TO HELP DEFRAY THE COSTS OF TUITION, TRAVEL AND/OR HOUSING DURING A VISITING OBSERVERSHIP OF ONE MONTH OR MORE. ONE YEAR OF FREE ISDP ASSOCIATE MEMBERSHIP IS INCLUDED ACCOMPANIED BY A SUBSCRIPTION TO THE AMERICAN JOURNAL OF DERMATOPATHOLOGY. AN ORAL OR POSTER PRESENTATION AT THE MEETING IS REQUIRED OF THE TRAVEL AWARD GRANT RECIPIENTS.</ExplanationTxt>
      </SupplementalInformationDetail>
      <SupplementalInformationDetail>
        <FormAndLineReferenceDesc>SCHEDULE F, PAGE 5, PART V</FormAndLineReferenceDesc>
        <ExplanationTxt>ISDP'S TRAVEL GRANT AWARD PROVIDES FUNDING FOR PHYSICIANS FROM ALL COUNTRIES (EXCLUDING USA, CANADA, WESTERN EUROPE, JAPAN AND AUSTRAILA) TO ATTEND A MEETING OF ISDP. THE VISITING SCHOLAR GRANT PROVIDES FINANCIAL ASSISTANCE TO DESERVING PHYSICIANS FROM LOW OR LOWER MIDDLE INCOME COUNTRIES TO ACQUIRE ADDITIONAL SKILLS BY TRAINING IN DERMATOPATHOLOGY IN ANOTHER COUNTRY. THROUGH THESE AWARDS, ISDP PLANS TO REINFORCE ITS GLOBAL PRESENCE; FOSTER, PROMOTE, AND SUPPORT DERATOPATHOLOGY THROUGHOUT THE WORLD; PROVIDE A FORUM FOR THE EXCHANGE OF IDEAS AND RESEARCH IN DERMATOPATHOLOGY; AND FACILITATE ESTABLISHING RELATIONSHIPS BETWEEN DERMAPATHOLOGISTS AROUND THE WORLD. GRANTS ARE AWARDED ON THE BASIS OF ANTICIPATED POSITIVE IMPACT THE EXPERIENCE WILL HAVE ON THE FIELD OF DERMATOPATHOLGY IN THE RECIPIENT'S COUNTRY. ALL APPLICANTES MUST BE PHYSICIANS PRACTICING DERMATOLOGY OR PATHOLOGY. CANDIDATES MUST DEMONSTRATE A STRONG INTEREST IN THE FIELD OF DERMATOPATHOLOGY. CANDIDATES ARE REQUIRED TO PARTICIPATE AT THE MEETING BY EITHER ORAL OR POSTER PRESENTATION.</ExplanationTxt>
      </SupplementalInformationDetail>
    </IRS990ScheduleF>
    <IRS990ScheduleO documentId="RetDoc2">
      <SupplementalInformationDetail>
        <FormAndLineReferenceDesc>FORM 990 - ORGANIZATION'S MISSION</FormAndLineReferenceDesc>
        <ExplanationTxt>THE AIMS AND OBJECTIVES OF THE ISDP ARE TO INCREASE KNOWLEDGE OF THE STRUCTURE AND FUNCTION OF THE SKIN AND OF DISEASES OF THE SKIN BY MICROSCOPY. THE SOCIETY INTENDS TO PROMOTE FRIENDSHIP AND SCIENTIFIC EXCHANGES AMONG ITS MEMBERS OF DIFFERENT COUNTRIES; TO SPONSOR INTERNATIONAL AND REGIONAL MEETINGS; AND TO SPONSOR EDUCATIONAL EVENTS.</ExplanationTxt>
      </SupplementalInformationDetail>
      <SupplementalInformationDetail>
        <FormAndLineReferenceDesc>FORM 990, PAGE 6, PART VI, LINE 6</FormAndLineReferenceDesc>
        <ExplanationTxt>THE ASSOCIATION MEMBERSHIP LEVELS INCLUDE REGULAR, ASSOCIATE, SPONSORING, SENIOR, PATRON AND HONORARY. A MEMBERSHIP APPLICATION MAY BE REQUESTED BY CONTACTING THE SOCIETY OFFICE OR AT THE SOCIETY'S WEBSITE.</ExplanationTxt>
      </SupplementalInformationDetail>
      <SupplementalInformationDetail>
        <FormAndLineReferenceDesc>FORM 990, PAGE 6, PART VI, LINE 7A</FormAndLineReferenceDesc>
        <ExplanationTxt>EVERY THIRD YEAR, THE EXECUTIVE COMMITTEE SUBMITS A LIST OF NOMINATIONS FOR PRESIDENT, VICE-PRESIDENT, SECRETARY AND TREASURER TO A GENERAL MEETING OF THE SOCIETY. MEMBERS AT THAT MEETING MAY NOMINATE ADDITIONAL INDIVIDUALS FOR EACH POSITION. THE MEMBERSHIP WILL THEN VOTE BY CLOSED BALLOT IF MORE THAN ONE NAME IS IN NOMINATION FOR A PARTICULAR OFFICE. VOTE IS BY OPEN BALLOT IF THERE IS NO OPPOSITION TO THE SLATE PROPOSED BY THE EXECUTIVE COMMITTEE.</ExplanationTxt>
      </SupplementalInformationDetail>
      <SupplementalInformationDetail>
        <FormAndLineReferenceDesc>FORM 990, PAGE 6, PART VI, LINE 11B</FormAndLineReferenceDesc>
        <ExplanationTxt>THE 990 IS REVIEWED BY THE MANAGER AND AT LEAST ONE OFFICER PRIOR TO FILING.</ExplanationTxt>
      </SupplementalInformationDetail>
      <SupplementalInformationDetail>
        <FormAndLineReferenceDesc>FORM 990, PAGE 6, PART VI, LINE 19</FormAndLineReferenceDesc>
        <ExplanationTxt>GOVERNING DOCUMENTS ARE AVAILABLE UPON REQUEST.</ExplanationTxt>
      </SupplementalInformationDetail>
    </IRS990ScheduleO>
  </ReturnData>
</Return>