[1] Univ Athens, Laiko Gen Hosp, Sch Med, Dept Gastroenterol, Athens, Greece
[2] Univ Athens, Hippokratio Gen Hosp Athens, Dept Internal Med 2, Athens, Greece
[3] Aristotle Univ Thessaloniki, Hippokratio Hosp, Dept Internal Med 4, Thessaloniki, Greece
[4] Gen Hosp Western Attica Agia Varvara, Gen Hosp Nikaia Piraeus Agios Panteleimon, Athens, Greece
[5] Univ Thessaly, Sch Med, Dept Med, Larisa, Greece
[6] Univ Thessaly, Sch Med, Res Lab Internal Med, Larisa, Greece
[7] Gen & Oncol Hosp Kifisia Agioi Anargyroi, Univ Dept Internal Med, Hepatogastroenterol Unit, Athens, Greece
[8] Aristotle Univ Thessaloniki, PAPAGEORGIOY Hosp, Dept Internal Med 3, Thessaloniki, Greece
[9] Univ Hosp Herakl Crete, Dept Gastroenterol & Hepatol, Iraklion, Greece
[10] Gen Hosp Rhodes, Dept Internal Med 1, Rhodes, Greece
[11] Euroclin SA, Liver Unit, Athens, Greece
[12] Democritus Univ Thrace, Dept Internal Med 1, Alexandroupolis, Greece
[13] Univ Hosp Patras, Dept Gastroenterol, Patras, Greece
[14] Evangelismos Gen Hosp, Dept Internal Med 4, Athens, Greece
[15] Evangelismos Gen Hosp, Liver Outpatient Clin, Athens, Greece
[16] Army Share Fund Hosp Athens, Dept Internal Med 1, Athens, Greece