1. Multivisceral Transplant Unit; University Hospital; Padova Italy
2. Gastroenterology Unit; Department of Internal Medicine; University of Genoa; Ospedale Policlinico San Martino; Genoa Italy
3. Internal Medicine; University Hospital; Bologna Italy
4. Gastroenterology; La Sapienza University; Rome Italy
5. Gastroenterology; University Hospital; Bari Italy
6. Hepatology and Gastroenterology Unit; ISMETT-IRCCS; Palermo Italy
7. Internal Medicine; University Hospital; Udine Italy