2003

Heidelberg/Mannheim Tumor Center Founding member

by paul

2002

European Pancreatic Club (EPC) Präsident

by paul

2001

European Surgical Association (ESA), Advisory Board for ESA, Pancreatica.org
 Advisory Board, The Best of the Best – 2000 (10)
 Archives of Surgery (Vol. 136, July 2001)

by paul

2000

Swiss Society of Surgery Vice President, Pancreas Club, Inc., Board of Leaders

by paul

2000 - 2005

Gastroeenterology, Editorial Board

by paul

1996 - 2000

International Association of Pancreatology Consultant, Swiss Society for Visceral Surgery Board member, Surgical Biology Club III of the American College of Surgeons Member, International Association of Pancreatology (IAP) Treasurer, International Hepato Pancreato Biliary Association (IHPBA)
Chair of the Scientific Advisory Board, German Society for Digestive and Metabolic Diseases DGVS Board member, Swiss Society for Visceral Surgery President, German Society for Surgery DGCH Member Commission for Clinical Studies

by paul

1996

German Society for Surgery (DGCH) Member of the Committee for Surgical Research, International Association of Pancreatology Consultant

by paul

1995

European Association for Endoscopic Surgery and Other Interventional Techniques (E.A.E.S.) Member of the Training Advisory Board, European Digestive Surgery (EDS) Secretary

by paul

1994

International Gastro-Surgical Club Committee member

by paul

1988 - 1994

Gastroenterological Colloquium of the University of Ulm Organization, European Pancreatic Club Member of the selection committee, German Society for Digestive and Metabolic Diseases (DGVS) Member of the program committee, European Pancreatic Cancer Study Group
 Secretary, German Pancreas Working, German Society for Surgery Secretary of the Surgical Forum Group Scientific Beira

by paul