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      </Form990ScheduleKPartII>
      <Form990ScheduleKPartIII>
        <OwningBondFinancedProperty>0</OwningBondFinancedProperty>
        <AnyLeaseArrangements>0</AnyLeaseArrangements>
        <MngmentCntrctBondFinancdPrprty>0</MngmentCntrctBondFinancdPrprty>
        <AnyResearchAgreements>0</AnyResearchAgreements>
        <PostIssuanceComplianceProcdrs>0</PostIssuanceComplianceProcdrs>
      </Form990ScheduleKPartIII>
      <Form990ScheduleKPartIV>
        <Form8038TFiled>0</Form8038TFiled>
        <VariableRateIssue>1</VariableRateIssue>
        <HedgeIdentifiedInBooksAndRecds>0</HedgeIdentifiedInBooksAndRecds>
        <GrossProceedsInvestedInGIC>0</GrossProceedsInvestedInGIC>
        <GrossProceedsInvested>0</GrossProceedsInvested>
        <ExceptionToRebate>0</ExceptionToRebate>
      </Form990ScheduleKPartIV>
    </IRS990ScheduleK>
    <IRS990ScheduleL documentId="RetDoc1042800001">
      <Form990ScheduleLPartIV>
        <NameOfInterestedPerson>
          <NamePerson>DR EDWARD J BENZ</NamePerson>
        </NameOfInterestedPerson>
        <Relationship>TRUSTEE</Relationship>
        <AmountOfTransaction>2627</AmountOfTransaction>
        <DescriptionOfTransaction>RENTAL OF OFFICE FROM ORGANIZATION AT FAIR MARKET VALUE</DescriptionOfTransaction>
        <SharingOfRevenues>0</SharingOfRevenues>
      </Form990ScheduleLPartIV>
      <Form990ScheduleLPartIV>
        <NameOfInterestedPerson>
          <NamePerson>DR BRUCE ASTANTON</NamePerson>
        </NameOfInterestedPerson>
        <Relationship>TRUSTEE</Relationship>
        <AmountOfTransaction>17544</AmountOfTransaction>
        <DescriptionOfTransaction>RENTAL OF OFFICE,COTTTAGE &amp; LAB SPACE FROM ORGANIZATION AT FAIR MARKET VALUE</DescriptionOfTransaction>
        <SharingOfRevenues>0</SharingOfRevenues>
      </Form990ScheduleLPartIV>
      <Form990ScheduleLPartIV>
        <NameOfInterestedPerson>
          <NamePerson>DR JAMES L BOYER</NamePerson>
        </NameOfInterestedPerson>
        <Relationship>TRUSTEE</Relationship>
        <AmountOfTransaction>9734</AmountOfTransaction>
        <DescriptionOfTransaction>RENTAL OF OFFICE &amp; LAB SPACE FROM ORGANIZATION AT FAIR MARKET VALUE</DescriptionOfTransaction>
        <SharingOfRevenues>0</SharingOfRevenues>
      </Form990ScheduleLPartIV>
      <Form990ScheduleLPartIV>
        <NameOfInterestedPerson>
          <NamePerson>DR JAMES B CLAIBORNE</NamePerson>
        </NameOfInterestedPerson>
        <Relationship>TRUSTEE</Relationship>
        <AmountOfTransaction>10424</AmountOfTransaction>
        <DescriptionOfTransaction>RENTAL OF OFFICE &amp; LAB SPACE FROM ORGANIZATION AT FAIR MARKET VALUE</DescriptionOfTransaction>
        <SharingOfRevenues>0</SharingOfRevenues>
      </Form990ScheduleLPartIV>
      <Form990ScheduleLPartIV>
        <NameOfInterestedPerson>
          <NamePerson>DR JAMES B CLAIBORNE</NamePerson>
        </NameOfInterestedPerson>
        <Relationship>TRUSTEE</Relationship>
        <AmountOfTransaction>1200</AmountOfTransaction>
        <DescriptionOfTransaction>PAID STIPEND</DescriptionOfTransaction>
        <SharingOfRevenues>0</SharingOfRevenues>
      </Form990ScheduleLPartIV>
      <Form990ScheduleLPartIV>
        <NameOfInterestedPerson>
          <NamePerson>DR BRUCE ASTANTON</NamePerson>
        </NameOfInterestedPerson>
        <Relationship>TRUSTEE</Relationship>
        <AmountOfTransaction>6060</AmountOfTransaction>
        <DescriptionOfTransaction>PAID STIPENDS &amp; HONORARIA</DescriptionOfTransaction>
        <SharingOfRevenues>0</SharingOfRevenues>
      </Form990ScheduleLPartIV>
      <Form990ScheduleLPartIV>
        <NameOfInterestedPerson>
          <NamePerson>PHOBE FORREST LINK</NamePerson>
        </NameOfInterestedPerson>
        <Relationship>SISTER TO FORMER EXECUTIVE DIRECTOR</Relationship>
        <AmountOfTransaction>2750</AmountOfTransaction>
        <DescriptionOfTransaction>RENTED HOUSE TO ORGANIZATION FOR VISITING SCIENTISTS</DescriptionOfTransaction>
        <SharingOfRevenues>0</SharingOfRevenues>
      </Form990ScheduleLPartIV>
      <Form990ScheduleLPartIV>
        <NameOfInterestedPerson>
          <NamePerson>JOHN FORREST</NamePerson>
        </NameOfInterestedPerson>
        <Relationship>FORMER EXECUTIVE DIRECTOR</Relationship>
        <AmountOfTransaction>10500</AmountOfTransaction>
        <DescriptionOfTransaction>PAID HONORARIA</DescriptionOfTransaction>
        <SharingOfRevenues>0</SharingOfRevenues>
      </Form990ScheduleLPartIV>
    </IRS990ScheduleL>
    <IRS990ScheduleO documentId="RetDoc1044400001">
      <GeneralExplanation>
        <ReturnReference>FORM 990, PART VI, SECTION A, LINE 2</ReturnReference>
        <Explanation>JAMES L. BOYER AND PHOEBE C. BOYER HAVE FAMILY RELATIONSHIP. RICHARD M. HAYS AND JOHN A. HAYS HAVE A FAMILY RELATIONSHIP.</Explanation>
      </GeneralExplanation>
      <GeneralExplanation>
        <ReturnReference>FORM 990, PART VI, SECTION A, LINE 3</ReturnReference>
        <Explanation>MANAGEMENT OF MDIBL'S INVESTMENT ACCOUNTS IS PERFORMED BY A CONTRACTED INVESTMENT MANAGEMENT FIRM.</Explanation>
      </GeneralExplanation>
      <GeneralExplanation>
        <ReturnReference>FORM 990, PART VI, SECTION A, LINE 4</ReturnReference>
        <Explanation>THE BY-LAWS WERE AMENDED ON JULY 26,2011.</Explanation>
      </GeneralExplanation>
      <GeneralExplanation>
        <ReturnReference>FORM 990, PART VI, SECTION A, LINE 6</ReturnReference>
        <Explanation>THERE ARE 336 MEMBERS OF THE CORPORATION, 82 ARE FULL MEMBERS WITH VOTING POWER.</Explanation>
      </GeneralExplanation>
      <GeneralExplanation>
        <ReturnReference>FORM 990, PART VI, SECTION A, LINE 7A</ReturnReference>
        <Explanation>FULL MEMBERS HAVE VOTING RIGHTS AND ARE RESPONSIBLE FOR ELECTING THE BOARD OF TRUSTEES.</Explanation>
      </GeneralExplanation>
      <GeneralExplanation>
        <ReturnReference>FORM 990, PART VI, SECTION B, LINE 11</ReturnReference>
        <Explanation>THE FORM 990 IS REVIEWED BY SENIOR MANAGEMENT AND GOVERNANCE COMMITTEE PRIOR TO FILING. COPIES ARE PROVIDED TO THE ENTIRE BOARD AFTER THE FORM 990 IS FILED.</Explanation>
      </GeneralExplanation>
      <GeneralExplanation>
        <ReturnReference>FORM 990, PART VI, SECTION B, LINE 12C</ReturnReference>
        <Explanation>THE BOARD OF TRUSTEES ARE ASKED TO REVIEW THE CONFLICT OF INTEREST POLICY AND DISCLOSE ANY POTENTIAL CONFLICTS ANNUALLY. THE CHAIRMAN OF THE BOARD HAS CHARGED THE GOVERNANCE COMMITTEE WITH REVIEWING THE WRITTEN POLICY ON AN ANNUAL BASIS AND ENSURING THAT EACH MEMBER OF THE BOARD READS AND SIGNS THE POLICY ANNUALLY. TIME IS SET ASIDE AT ONE BOARD MEETING PER YEAR TO DISCUSS POTENTIAL CONFLICTS OF INTEREST.</Explanation>
      </GeneralExplanation>
      <GeneralExplanation>
        <ReturnReference>FORM 990, PART VI, SECTION B, LINE 15</ReturnReference>
        <Explanation>MDIBL USES COMPARABILITY DATA FROM OTHER NON-PROFIT IN THE AREA AND IN SAME FIELD OF SCIENTIFIC RESEARCH.</Explanation>
      </GeneralExplanation>
      <GeneralExplanation>
        <ReturnReference>FORM 990, PART VI, SECTION C, LINE 19</ReturnReference>
        <Explanation>MDIBL MAKES ITS GOVERNING DOCUMENTS AND FINANCIAL STATEMENTS AVAILABLE IN PDF FORMAT ON ITS WEBSITE. THE CONFLICT OF INTEREST STATEMENT IS AVAILABLE BY REQUEST. FORM 990 ALSO AVAILABLE ON GUIDESTAR.COM</Explanation>
      </GeneralExplanation>
      <GeneralExplanation>
        <Identifier>CHANGES IN NET ASSETS OR FUND BALANCES:</Identifier>
        <ReturnReference>FORM 990, PART XI, LINE 5:</ReturnReference>
        <Explanation>NET UNREALIZED LOSSES ON INVESTMENTS: -451,187. ROUNDING 16. CHANGE IN INDIRECT COST RATES CALCULATED FOR 2010 -21,520. TOTAL TO FORM 990, PART XI, LINE 5: -472,691.</Explanation>
      </GeneralExplanation>
    </IRS990ScheduleO>
  </ReturnData>
</Return>