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        <FormAndLineReferenceDesc>SCHEDULE D, PAGE 3, PART X</FormAndLineReferenceDesc>
        <ExplanationTxt>ASC 740-10, "ACCOUNTING FOR UNCERTAINTY IN INCOME TAXES" REQUIRES THE SOCIETY TO EVALUATE AND DISCLOSE TAX POSITIONS THAT COULD HAVE AN EFFECT ON THE SOCIETY'S FINANCIAL STATEMENTS. THE SOCIETY REPORTS ITS ACTIVITIES TO THE INTERNAL REVENUE SERVICE AND TO THE COMMONWEALTH OF MASSACHUSETTS ON AN ANNUAL BASIS. THESE INFORMATIONAL RETURNS ARE GENERALLY SUBJECT TO AUDIT FOR A PERIOD OF THREE YEARS AFTER FILING. SUBSTANTIALLY ALL THE SOCIETY'S INCOME, EXPENDITURES AND ACTIVITIES RELATE TO ITS EXEMPT PURPOSE, THEREFORE, MANAGEMENT HAS DETERMINED THAT THE SOCIETY IS NOT SUBJECT TO UNRELATED BUSINESS INCOME TAXES AND WILL CONTINUE TO QUALIFY AS A TAX- EXEMPT NOT-FOR-PROFIT ENTITY.</ExplanationTxt>
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    </IRS990ScheduleD>
    <IRS990ScheduleF documentId="RetDoc7">
      <GrantRecordsMaintainedInd>true</GrantRecordsMaintainedInd>
      <AccountActivitiesOutsideUSGrp>
        <RegionTxt>EUROPE</RegionTxt>
        <TypeOfActivitiesConductedTxt>GRANTS TO RECIPIENTS</TypeOfActivitiesConductedTxt>
        <RegionTotalExpendituresAmt>21983</RegionTotalExpendituresAmt>
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      <SubtotalSpentAmt>21983</SubtotalSpentAmt>
      <TotalSpentAmt>21983</TotalSpentAmt>
      <ForeignIndividualsGrantsGrp>
        <TypeOfAssistanceTxt>SUBRAMANIAN INNOVATION</TypeOfAssistanceTxt>
        <RegionTxt>EUROPE</RegionTxt>
        <RecipientCnt>2</RecipientCnt>
        <CashGrantAmt>16983</CashGrantAmt>
        <MannerOfCashDisbursementTxt>CHECK</MannerOfCashDisbursementTxt>
      </ForeignIndividualsGrantsGrp>
      <ForeignIndividualsGrantsGrp>
        <TypeOfAssistanceTxt>GRUNDEMAN AWARD</TypeOfAssistanceTxt>
        <RegionTxt>EUROPE</RegionTxt>
        <RecipientCnt>1</RecipientCnt>
        <CashGrantAmt>5000</CashGrantAmt>
        <MannerOfCashDisbursementTxt>CHECK</MannerOfCashDisbursementTxt>
      </ForeignIndividualsGrantsGrp>
      <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 3</FormAndLineReferenceDesc>
        <ExplanationTxt>EUROPE 21,983 0</ExplanationTxt>
      </SupplementalInformationDetail>
      <SupplementalInformationDetail>
        <FormAndLineReferenceDesc>SCHEDULE F, PAGE 5, PART V</FormAndLineReferenceDesc>
        <ExplanationTxt>PART I, LINE 2: GRANTS AWARDED ARE COMPETITION BASED AND AWARDED TO RECOGNIZE EXCELLENCE IN PREPARATION OF MANUSCRIPTS AND PRESENTATIONS IN THE AREA OF CARDIOTHORACIC AND CARDIOVASCULAR SURGERY.</ExplanationTxt>
      </SupplementalInformationDetail>
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    <IRS990ScheduleI documentId="RetDoc4">
      <GrantRecordsMaintainedInd>false</GrantRecordsMaintainedInd>
      <GrantsOtherAsstToIndivInUSGrp>
        <GrantTypeTxt>BEST MODERATED POSTER</GrantTypeTxt>
        <RecipientCnt>11</RecipientCnt>
        <CashGrantAmt>6000</CashGrantAmt>
      </GrantsOtherAsstToIndivInUSGrp>
      <GrantsOtherAsstToIndivInUSGrp>
        <GrantTypeTxt>YOUNG INVESTIGATOR AWARD</GrantTypeTxt>
        <RecipientCnt>1</RecipientCnt>
        <CashGrantAmt>3000</CashGrantAmt>
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      <GrantsOtherAsstToIndivInUSGrp>
        <GrantTypeTxt>CHITWOOD AWARD</GrantTypeTxt>
        <RecipientCnt>2</RecipientCnt>
        <CashGrantAmt>2000</CashGrantAmt>
      </GrantsOtherAsstToIndivInUSGrp>
      <SupplementalInformationDetail>
        <FormAndLineReferenceDesc>SCHEDULE I, PAGE 4, PART IV</FormAndLineReferenceDesc>
        <ExplanationTxt>PART I, LINE 2: GRANTS AWARDED ARE COMPETITION BASED AND AWARDED TO RECOGNIZE EXCELLENCE IN PREPARATION OF MANUSCRIPTS AND PRESENTATIONS IN THE AREA OF CARDIOTHORACIC AND CARDIOVASCULAR SURGERY.</ExplanationTxt>
      </SupplementalInformationDetail>
    </IRS990ScheduleI>
    <IRS990ScheduleO documentId="RetDoc5">
      <SupplementalInformationDetail>
        <FormAndLineReferenceDesc>FORM 990, PAGE 2, PART III, LINE 4D</FormAndLineReferenceDesc>
        <ExplanationTxt>GRANTS AND CONTRIBUTIONS - SUBRAMANIAN AWARD, GRUNDEMAN AWARD, AND CHITWOOD AWARD.</ExplanationTxt>
      </SupplementalInformationDetail>
      <SupplementalInformationDetail>
        <FormAndLineReferenceDesc>FORM 990, PAGE 6, PART VI, LINE 3</FormAndLineReferenceDesc>
        <ExplanationTxt>THE PROFESSIONAL RELATIONS AND RESEARCH INSTITUTE (PRRI) OF BEVERLY, MASSACHUSETTS, MAINTAINS THE BOOKS AND RECORDS OF THE SOCIETY AND PERFORMS OTHER RELATED MANAGERIAL AND ADMINISTRATIVE FUNCTIONS FOR WHICH IT IS COMPENSATED.</ExplanationTxt>
      </SupplementalInformationDetail>
      <SupplementalInformationDetail>
        <FormAndLineReferenceDesc>FORM 990, PAGE 6, PART VI, LINE 6</FormAndLineReferenceDesc>
        <ExplanationTxt>THE ORGANIZATION HAS EIGHT CLASSES OF MEMBERS: ACTIVE, SENIOR, INACTIVE, CANDIDATE, HONORARY, ALLIED HEALTH, RESIDENT/MEDICAL STUDENT, AND CORPORATE. ACTIVE MEMBERS HAVE VOTING RIGHTS.</ExplanationTxt>
      </SupplementalInformationDetail>
      <SupplementalInformationDetail>
        <FormAndLineReferenceDesc>FORM 990, PAGE 6, PART VI, LINE 7A</FormAndLineReferenceDesc>
        <ExplanationTxt>ACTIVE MEMBERS HAVE THE RIGHT TO ELECT OFFICERS AND MEMBERS OF THE BOARD OF DIRECTORS.</ExplanationTxt>
      </SupplementalInformationDetail>
      <SupplementalInformationDetail>
        <FormAndLineReferenceDesc>FORM 990, PAGE 6, PART VI, LINE 7B</FormAndLineReferenceDesc>
        <ExplanationTxt>ACTIVE MEMBERS HAVE THE RIGHT TO VOTE ON MATTERS ALLOWED UNDER THE LAW.</ExplanationTxt>
      </SupplementalInformationDetail>
      <SupplementalInformationDetail>
        <FormAndLineReferenceDesc>FORM 990, PAGE 6, PART VI, LINE 11B</FormAndLineReferenceDesc>
        <ExplanationTxt>990 IS REVIEWED BY THE ADMINISTRATIVE STAFF OF THE MANAGEMENT COMPANY (PRRI) AND IS THEN PROVIDED TO THE TREASURER FOR FINAL REVIEW BEFORE IT IS FILED.</ExplanationTxt>
      </SupplementalInformationDetail>
      <SupplementalInformationDetail>
        <FormAndLineReferenceDesc>FORM 990, PAGE 6, PART VI, LINE 12C</FormAndLineReferenceDesc>
        <ExplanationTxt>THE CONFLICT OF INTEREST POLICY IS DISTRIBUTED, DISCUSSED AND UPDATED AT EACH BOARD MEETING IN ORDER FOR THE ORGANIZATION TO MONITOR AND ENFORCE COMPLIANCE WITH THE POLICY BY ALL OFFICERS AND DIRECTORS.</ExplanationTxt>
      </SupplementalInformationDetail>
      <SupplementalInformationDetail>
        <FormAndLineReferenceDesc>FORM 990, PAGE 6, PART VI, LINE 19</FormAndLineReferenceDesc>
        <ExplanationTxt>GOVERNING DOCUMENTS, CONFLICT OF INTEREST POLICY AND FINANCIAL STATEMENTS ARE AVAILABLE TO THE PUBLIC UPON REQUEST AT THE ADMINISTRATIVE OFFICES OF THE ORGANIZATION'S MANAGEMENT COMPANY (PRRI).</ExplanationTxt>
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  </ReturnData>
</Return>