1. Division of Gastroenterology, Azienda Ospedaliero-Universitaria di Modena, and University of Modena and Reggio Emilia, 41121 Modena, Italy
2. Division of Radiology, Azienda Ospedaliero-Universitaria di Modena, and University of Modena and Reggio Emilia, 41121 Modena, Italy
3. Multivisceral Transplant Unit-Gastroenterology, Department of Surgery, Oncology and Gastroenterology, Padua University Hospital, 35128 Padua, Italy