1. Hepatology Unit, Clinic Beau-Site Hirslanden, Bern, Switzerland
2. Department of Visceral Surgery and Medicine, Inselspital, University Clinic of Bern, Bern, Switzerland
3. Department of Gastroenterology, Spital Interlaken, Unterseen, Switzerland
4. Department of Pathology, University of Bern, Bern, Switzerland
5. Department of Internal Medicine, Hospital Oberndorf, Teaching Hospital of the Paracelsus Private University of Salzburg, Oberndorf, Austria
6. Medical Department 1, University Hospital Dresden, Technische Universität Dresden, Dresden, Germany
7. Department of Gastroenterology and Hepatology, University Hospital of Zürich, Zurich, Switzerland