1. Division of Hematology and Central Hematology Laboratory Lausanne University Hospital (CHUV) and University of Lausanne (UNIL) Lausanne Switzerland
2. Division of Gastroenterology and Hepatology Lausanne University Hospital (CHUV) and University of Lausanne (UNIL) Lausanne Switzerland
3. University Clinic for Visceral Surgery and Medicine, University Hospital Inselspital and University of Bern Bern Switzerland
4. Gastroenterology and Hepatology, Ente Ospedaliero Cantonale, Università della Svizzera Italiana Lugano Switzerland