[1] Chinese Univ Hong Kong, Inst Digest Dis, Dept Med & Therapeut, Hong Kong, Hong Kong, Peoples R China
[2] Chinese Univ Hong Kong, State Key Lab Digest Dis, Hong Kong, Hong Kong, Peoples R China
[3] Univ Athens, Sch Med, Dept Gastroenterol, Laiko Gen Hosp, GR-11527 Athens, Greece
[4] IST GmbH, Mannheim, Germany
[5] F Hoffmann La Roche Ltd, Basel, Switzerland
[6] Univ Milan, Fdn IRCCS Ca Granda Osped Maggiore Policlin, Gastroenterol Unit 1, AM&A Migliavacca Ctr Liver Dis, Milan, Italy