[1] Gen & Oncol Hosp Kifisia Agioi Anargyroi, Univ Dept Internal Med, Hepatogastroenterol Unit, Athens, Greece
[2] Univ Thessaly, Sch Med, Dept Med, Larisa, Greece
[3] Univ Thessaly, Sch Med, Res Lab Internal Med, Larisa, Greece
[4] Univ Athens, Hippokratio Gen Hosp Athens, Dept Internal Med 2, Athens, Greece
[5] Aristotle Univ Thessaloniki, Hippokratio Hosp, Med Dept 4, Thessaloniki, Greece
[6] Univ Athens, Laiko Gen Hosp, Dept Gastroenterol, Athens, Greece
[7] Univ Hosp Patras, Dept Gastroenterol, Patras, Greece
[8] Gen Hosp Western Attica, Athens, Greece
[9] Evangelismos Gen Hosp, Dept Internal Med 4, Athens, Greece
[10] Evangelismos Gen Hosp, Liver Outpatient Clin, Athens, Greece
[11] Gen Hosp Rhodes, Rhodes, Greece