- 2003 - 2005
MemberInstitutional Review Board, Mayo Clinic Committees
- 2002 - 2006
Board MemberAmerican College of Endocrinology
- 2002 - 2006
MemberCME Committee, American Association of Clinical Endocrinologists
- 2002 - 2006
MemberPublications Committee, American Association of Clinical Endocrinologists
- 2002 - 2006
MemberEthics Committee, American Association of Clinical Endocrinologists
- 2000 - present
Honorary MemberAmerican Association of Endocrine Surgeons
- 2000 - present
MemberAmerican Association of Endocrine Surgeons
- 1999 - 2001
ChairCouncil on Clinical Endocrinology, Health Care Delivery and Public Health, American Diabetes Association
- 1999 - 2001
MemberCouncil on Clinical Endocrinology, Health Care Delivery and Public Health, American Diabetes Association
- 1997 - present
MemberBest Doctors in America
- 1997 - present
MemberBoard of Directors, Best Doctors in America
- 1993 - 1994
MemberScientific Sessions Meeting Committee, American Diabetes Association
- 1993 - 1994
PresidentMinnesota Chapter, American Diabetes Association
- 1992 - 1993
President-ElectMinnesota Chapter, American Diabetes Association
- 1992 - 1993
PresidentRochester Chapter, Sigma Xi, The Scientific Research Society
- 1991 - 2001
MemberSigma Xi, The Scientific Research Society
- 1991 - 1995
MemberBoard of Directors, Minnesota Chapter, American Diabetes Association
- 1991 - 1994
Executive Committee MemberMinnesota Chapter, American Diabetes Association
- 1991 - 1992
Vice PresidentMinnesota Chapter, American Diabetes Association
- 1991 - 1992
President-ElectRochester Chapter, Sigma Xi, The Scientific Research Society
- 1990 - 1996
ChairGlycemic Exposure Evaluation Committee, Diabetes Control and Complications Trial
- 1990 - 1996
MemberGlycemic Exposure Evaluation Committee, Diabetes Control and Complications Trial
- 1990 - 1993
MemberAcademic Appointments and Promotions Committee - Mayo Clinic, Mayo Clinic Education Committee, Mayo Clinic Committees
- 1990
ChairData Monitoring Board, U.S. Department of Veterans Affairs
- 1990
MemberU.S. Department of Veterans Affairs
- 1990
MemberData Monitoring Board, U.S. Department of Veterans Affairs
- 1990
MemberProfessional Education Committee, Minnesota Chapter, American Diabetes Association
- 1990 - present
MemberAmerican Diabetes Association
- 1989 - 1993
ChairHospital Core Group, Mayo Clinic Committees
- 1989 - 1991
MemberQuality Assurance Committee, Department of Internal Medicine
- 1989 - 1991
MemberResearch Committee, Department of Internal Medicine
- 1989 - present
MemberHospital Core Group, Mayo Clinic Committees
- 1987 - 1990
MemberAdmissions Committee, Mayo Medical School, Mayo Clinic College of Medicine and Science
- 1982 - 1986
MemberPlanning Committee, Diabetes Control and Complications Trial
- 1982 - 1986
ChairStandards and Methods Committee, Diabetes Control and Complications Trial
- 1982 - 1986
MemberStandards and Methods Committee, Diabetes Control and Complications Trial
- 1982 - present
MemberDiabetes Control and Complications Trial
- 1982 - present
MemberSteering Committee, Diabetes Control and Complications Trial
- 1978 - 1981
MemberInstitutional Review Board, Mayo Clinic Committees
- 1976 - 1980
ChairDiabetes Core Group, Division of Endocrinology, Diabetes, Metabolism, Nutrition, Department of Internal Medicine
- 1976 - present
MemberDiabetes Core Group, Division of Endocrinology, Diabetes, Metabolism, Nutrition, Department of Internal Medicine
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FellowAmerican College of Physicians
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FellowRoyal College of Physicians and Surgeons of Canada
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FellowAmerican College of Endocrinology
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MemberAmerican Federation for Clinical Research
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MemberCentral Society for Clinical Research
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MemberThe Endocrine Society
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MemberEuropean Association for the Study of Diabetes