1. Swiss HPB (Hepato‐Pancreato‐Biliary) Centre and Division of Gastroenterology and Hepatology University Hospital Zurich Zurich Switzerland
2. Division of Hepatology University Hospital Würzburg Wurzburg Germany
3. Department of Pathology and Molecular Pathology University Hospital Zurich Zurich Switzerland
4. Institute of Pathology Kantonsspital St. Gallen Switzerland
5. Liver Unit Department of Medicine Hebrew University‐Hadassah Medical Centre Jerusalem Israel