作者单位:Clinic of General, Visceral and Transplantation Surgery, University Medical Center, Gutenberg University Mainz, Mainz, Germany.[1]Translational Medicine and Early Clinical, R&D Diabetes Division, Sanofi-Aventis, Industrial Park Hoechst, Frankfurt, Germany.[2]Section of Endocrine Surgery, Clinic of General, Visceral and Transplantation Surgery, University Medical Center, Gutenberg University Mainz, Mainz, Germany.[3]