[1] Univ Modena & Reggio Emilia, Liver & Multivisceral Transplant Ctr, I-41100 Modena, Italy
[2] Univ Bologna, Dept Liver & Multiorgan Transplantat, St Orsola Malpighi Hosp, Bologna, Italy
[3] Univ Tubingen, Dept Gen Surg & Transplantat, Tubingen, Germany
[4] Ghent Univ Hosp, Dept Gen Surg, Hepatobiliary & Liver Transplantat Serv, Sch Med, B-9000 Ghent, Belgium
[5] Azienda Univ Padova, Hepatobiliary Surg & Liver Transplant Unit, Padua, Italy
[6] Univ Padua, Gastroenterol Sect, Dept Surg & Gastroenterol Sci, Padua, Italy