Michael Christian Sulz
Division of Gastroenterology and Hepatology, Cantonal Hospital Müsterlingen, 8596 Münsterlingen, Thurgau; Department of Gastroenterology and Hepatology, University Hospital Zurich (USZ), and Zurich University, Zurich, Switzerland

Michael Doulberis
Department of Gastroenterology and Hepatology, University Hospital Zurich (USZ), and Zurich University, Zurich; Gastroklinik, Private Gastroenterological Practice, Horgen; Division of Gastroenterology and Hepatology, Medical University Department, Cantonal Hospital Aarau, Aarau, Switzerland

Nicolas Fournier
Institute of Social and Preventive Medicine, University Lausanne, Lausanne, Switzerland

Luc Biedermann
Department of Gastroenterology and Hepatology, University Hospital Zurich (USZ), and Zurich University, Zurich, Switzerland

Jonas Zeitz
Department of Gastroenterology and Hepatology, University Hospital Zurich (USZ), and Zurich University, Zurich, Switzerland

Benjamin Misselwitz
Department of Gastroenterology and Hepatology, University Hospital Zurich (USZ), and Zurich University, Zurich, Switzerland

Bruno Imthurn
Department of Reproductive Endocrinology, University Hospital Zurich (USZ), Zurich, Switzerland

Gerhard Rogler
Department of Gastroenterology and Hepatology, University Hospital Zurich (USZ), and Zurich University, Zurich, Switzerland

SIBDC Group
SIBDCS study group