1. Division of Hepatic Surgery and Liver Transplantation University of Pisa Medical School Hospital Pisa Italy
2. General Surgery 2U‐Azienda Ospedaliero Universitaria Città della Salute e della Scienza Turin Italy
3. Division of General Surgery and Organ Transplantation, Sapienza Università di Roma Azienda Ospedaliero‐Universitaria Policlinico Umberto I Rome Italy
4. Department of General Surgery and Transplantation ASST Grande Ospedale Metropolitano Niguarda Milan Italy
5. Department of Organ Failure and Transplantation ASST Papa Giovanni XXIII Bergamo Italy
6. Pathology Unit, Department of Medical Sciences University of Turin Turin Italy