[1] IOV IRCCS, ISt Oncol Veneto, Unita Biostat & Epidemiol, Padua, Italy
[2] Azienda Osped Padova, Dipartimento Chirurg Gen & Trapianti Organo, Unita Chirurg Epatol & Trapianto Epat, Padua, Italy
[3] Univ Padua, Dipartimento Med Ambientale & Sanita Pubbl, Unita Biostat & Epidemiol, I-35100 Padua, Italy
[4] Univ Padua, Dipartimento Med Clin & Sperimentale, Clin Med 5, I-35100 Padua, Italy
[5] Univ Padua, Dipartimento Sci Chirurg & Gastroenterol, Div Gastroenterol, I-35100 Padua, Italy