[1] Univ Navarra Clin, Liver Unit, Pamplona, Spain
[2] CIBEREHD, Pamplona, Spain
[3] IFO Regina Elena Natl Canc Inst, Rome, Italy
[4] Osped SM Goretti, Latina, Italy
[5] St Orsola Marcello Malpighi Hosp, Bologna, Italy
[6] Azienda Osped Santa Maria Misericordia, Udine, Italy
[7] Univ Klin Bonn, Bonn, Germany
[8] Univ Munich, LMU Klinikum, Munich, Germany
[9] G Pascale Canc Inst, Naples, Italy