- 2009 - present
AskMayoExpert - Knowledge Content Board - Rheumatology
- 2003 - 2005
MemberBoard of Directors, North Central Chapter, Arthritis Foundation
- 1995
Medical AdvisorMinnesota Chapter, Scleroderma Federation of America
- 1995
MemberBoard of Medical Advisors, Scleroderma Federation of America
- 1992 - 1993
MemberReview Section, Multipurpose Arthritis Center, National Institutes of Health
- 1991 - 1992
PresidentSt. Louis Rheumatism Society
- 1990 - 1993
MemberBoard of Directors, American College of Rheumatology-Central Region, American College of Rheumatology
- 1990
MemberCurriculum Review Committee, Saint Louis University School of Medicine
- 1989 - 1993
MemberPractice Committee, Internal Medicine, Saint Louis University School of Medicine
- 1986 - 1998
Co-ChairMissouri Coalition for Arthritis Patients
- 1986 - 1993
MemberMedical Scientific Advisory Board, St. Louis Chapter, Arthritis Foundation
- 1986 - 1993
MemberBoard of Directors, St. Louis Chapter, Arthritis Foundation
- 1986 - present
Founding FellowAmerican Rheumatism Association
- 1985 - 1988
ChairMedical Scientific Advisory Board, St. Louis Chapter, Arthritis Foundation
- 1984 - 1993
MemberInstitutional Review Board, Saint Louis University School of Medicine
- 1984 - 1985
PresidentSt. Louis Rheumatism Society
- 1983 - 1984
Vice PresidentSt. Louis Rheumatism Society
- 1982 - 2004
MemberAmerican Juvenile Arthritis Association
- 1980 - 1995
Medical AdvisorMinnesota Chapter, Arthritis Foundation
- 1980 - 1993
Medical AdvisorLupus Foundation of America
- 1980 - 1993
MemberSt. Louis Rheumatism Society
- 1980 - 1993
MemberAmerican Federation for Clinical Research
- 1980
Medical AdvisorUnited Scleroderma Foundation, St. Louis Chapter
- 1980 - present
MemberAmerican College of Rheumatology
- 1978 - 1994
MemberAmerican College of Physicians