[1] Univ Bologna, S Orsola Malpighi Hosp, Dept Digest Dis & Internal Med, Div Internal Med, Bologna, Italy
[2] Royal Free Hosp, Royal Free Sheila Sherlock Liver Ctr, London NW3 2QG, England
[3] UCL London, UCL Inst Liver & Digest Hlth, London, England
[4] Univ Bern, Inselspital, Univ Clin Visceral Surg & Med, CH-3010 Bern, Switzerland
[5] Univ Bern, Dept Clin Res, Bern, Switzerland
[6] Johannes Gutenberg Univ Mainz, Dept Med 1, Univ Med Ctr, D-6500 Mainz, Germany
[7] IRCCS Fdn, Natl Canc Inst, Ist Nazl Tumori, Milan, Italy
[8] Inst Paoli Calmettes, Dept Med Oncol, Marseille, France
[9] Univ Navarra Clin, Liver Unit, Pamplona, Spain
[10] Ctr Invest Biomed Red Enfermedades Hepat & Digest, Pamplona, Spain