1. Department of Advanced Medical and Surgical Sciences University of Campania Luigi Vanvitelli Naples Italy
2. Division of Gastroenterology and Hepatology, PROMISE University of Palermo Palermo Italy
3. Department of Pathophysiology and Transplantation, Fondazione Ca’ Granda IRCCS Ospedale Maggiore Policlinico University of Milan Milan Italy
4. Unit of Internal Medicine and Hepatolology Gragnano Hospital, ASL Napoli 3 Sud Naples Italy
5. Unit of Hepatology Pellegrini Hospital, ASL Napoli 1 Centro Naples Italy