[1] Univ Hosp Geneva, Div Gastroenterol & Hepatol, Geneva, Switzerland
[2] Univ Naples 2, Dept Mental Hlth & Publ Med, Naples, Italy
[3] Univ Naples 2, Internal Med & Hepatol, Naples, Italy
[4] Univ Naples 2, Dept Clin & Expt Med & Surg, Naples, Italy
[5] Hannover Med Sch, Dept Gastroenterol Hepatol & Endocrinol, Hannover, Germany
[6] Univ Sydney, Westmead Millenium Inst, Storr Liver Unit, Westmead Hosp, Sydney, NSW 2006, Australia
[7] Univ Zurich Hosp, Div Gastroenterol & Hepatol, CH-8091 Zurich, Switzerland
[8] Univ Lausanne Hosp, Div Gastroenterol & Hepatol, Lausanne, Switzerland
[9] Kantonsspital St Gallen, Div Gastroenterol, St Gallen, Switzerland
[10] Inselspital Bern, Dept Visceral Surg & Med, Hepatol, CH-3010 Bern, Switzerland
[11] Hop Neuchatelois, Neuchatel, Switzerland
[12] Univ Basel Hosp, Div Gastroenterol & Hepatol, CH-4031 Basel, Switzerland
[13] Univ Hosp Geneva, Div Clin Pathol, Geneva, Switzerland