1. Multivisceral Transplant Unit Department of Surgery, Oncology and Gastroenterology Padua University Hospital Padua Italy
2. Cancer Epidemiology Unit Centro di Riferimento Oncologico di Aviano (CRO) IRCCS Aviano Italy
3. Hepatobiliary Surgery and Liver Transplantation Unit Department of Surgery, Oncology and Gastroenterology Padua University Hospital Padua Italy
4. Division of General Surgery and Liver Transplantation S. Camillo Hospital Rome Italy
5. Department of Medicine University of Udine Udine Italy
6. Liver and Multiorgan Transplant Unit S. Orsola-Malpighi University Hospital Bologna Italy
7. Department of Gastroenterology and Hepatology Istituto Mediterraneo per i Trapianti e Terapie ad Alta Specializzazione (ISMETT) University of Pittsburgh Medical Center Palermo Italy
8. Department of Emergency and Organ Transplantation Gastroenterology Section University Hospital Bari Italy
9. Oncology and Immunology Section AIDS Reference Center Department of Oncology and Immunology University of Padua Padua Italy
10. Department of General Surgery and Organ Transplantation Umberto I Policlinic Sapienza University Rome Italy
11. UOC Transplant Unit Department of Surgery Tor Vergata University Rome Italy
12. Department of Surgery General and Hepatic Transplantation Surgery Unit A.O.B. Brotzu Cagliari Italy
13. Department of Epidemiology National Institute for Infectious Diseases L. Spallanzani Rome Italy