Affiliation: | 1. Division of Gastroenterology, Department of Internal Medicine, Santa Marta Santa Venera Hospital, , Acireale (Catania);2. Department of Drug Sciences, University of Catania, , Catania, Italy;3. Division of Gastro‐Hepatology, Department of Internal Medicine, University of Torino, , Torino;4. Department of “G.F. Ingrassia”, University of Catania, , Catania, Italy |