1. Internal Medicine and Hepatology Unit, University Campus Bio-Medico, Rome, Italy
2. Hepatology Unit, Ospedale San Giuseppe, University of Milan, Milan, Italy
3. C.R.C. “A.M. & A. Migliavacca Center for Liver Disease” and Division of Gastroenterology and Hepatology, University of Milan and Fondazione IRCCS Ca’ Granda Maggiore Hospital, Milan, Italy
4. Department of Surgery, Oncology and Gastroenterology, University of Padua, Padua, Italy
5. Hepatobiliopancreatic Surgery and Liver Transplantation Unit, Sapienza University of Rome, Rome, Italy
6. Gastroenterology and Hepatology Unit, PROMISE University of Palermo, Palermo, Italy
7. Gastroenterology and Digestive Endoscopy, Foggia University Hospital, Foggia, Italy
8. Gastroenterology Unit, University of Modena & Reggio Emilia, Modena, Italy
9. Dipartimento di Scienze Mediche e Chirurgiche Alma Mater Studiorum, Università di Bologna, Bologna, Italy