Department of Clinical Medicine;
Division of Gastroenterology;
Sapienza University of Rome;
00185 Rome;
Italy;
Department of General Surgery and Organ Transplantation "Paride Stefanini";
Sapienza University of Rome;
00185 Rome;
Italy;
Liver; transplantation; Referral; Waiting; list; Prioritization; Allocation; Timing; Cirrhosis; Hepatocellular; carcinoma; Indications; Contraindications;