[1] Univ Palermo, DIBIMIS, Gastroenterol Sect, I-90127 Palermo, Italy
[2] Univ Barcelona, IDBAPS, Hosp Clin Barcelona, Liver Unit,Barcelona Clin Liver Canc BCLC Grp, E-08007 Barcelona, Spain
[3] Campus Bio Med Univ, Hepatol Unit, I-00128 Rome, Italy
[4] Civil Hosp Brescia, Dept Radiol, I-25123 Brescia, Italy
[5] Mons R Dimiccoli Hosp, Med Oncol Unit, Barletta, Italy
[6] Venetian Oncol Inst IRCCS, Padua, Italy
[7] Univ Palermo, DiBiMeF, Sect Radiol, Palermo, Italy
[8] Pisa Univ Hosp, Gastroenterol & Metab Dis Unit, Pisa, Italy