Professor of Medicine, the Division of Endocrinology and Metabolism/Diabetes at the State University of New York.
Professor of Medicine, Director Emeritus, Baker IDI Heart & Diabetes Institute Melbourne, Honorary President, International Diabetes Federation Melbourne, Australia.
Professor of Surgery, Director of Outpatient Clinic Rudolfinerhaus Privatklinik GmbH, Vienna, Austria.
Professor of Medicine, Chairman of the Department of Medicine, and Head of the Division of Endocrinology, Diabetes and Metabolism at the Asklepios Clinic St. Georg in Hamburg.
Professor of Surgery, Consultant Surgeon and Clinical Associate Professor (Honorary), Upper Gastrointestinal & Metabolic Surgery Division, Department of Surgery, The Chinese University of Hong Kong.
Professor of Medicine, Director and Chair Department of Medicine, Dean of Development and International Affairs University of Dresden, Transcampus Dean and Chair and Honorary Consultant in Endocrinology and Diabetes, Diabetes and Nutritional Sciences Rayne Institute, Denmark Hill Campus King’s College London.
Professor of Surgery, University of Genoa Medical School, Founder, First President, and Honorary President of the Società Italia di Chirurgia dell’Obesità e delle malattie metaboliche (SICOB), Founder, First President, and Honorary President of the International Federation for the Surgery of Obesity and Metabolic Disorders (IFSO).
Professor of Medicine, Senior Physician at the Department for Internal Medicine, Diabetes, Gastroenterology, Endocrinology and Metabolic Diseases, Asklepios Klinik St. Georg, Hamburg, Germany.