1 Unit of Addiction and Hepatology, Alcohological Regional Center, ASL3, San Martino Polyclinic Hospital, Genoa, Italy.
2 Unit of Gastroenterology, Molinette Hospital, Turin, Italy.
3 Unit of Addiction and Hepatology, Alcohological Regional Center, ASL3, San Martino Polyclinic Hospital, Genoa, Italy - gianni.testino@asl3.liguria.it.
4 Department of Internal Medicine, SS Annunziata Hospital, University of Ferrara, Cento, Ferrara, Italy.