[1] Univ Hosp Padua, Dept Med, I-35128 Padua, Italy
[2] Univ Montreal, Dept Nutr, Montreal, PQ H3C 3J7, Canada
[3] Ctr Hosp Univ Montreal, Neurosci Res Unit, Montreal, PQ, Canada
[4] Univ Autonoma Barcelona, Hosp Vall Hebron, Liver Unit, E-08193 Barcelona, Spain
[5] Iwate Med Univ, Dept Internal Med, Div Gastroenterol & Hepatol, Morioka, Iwate 020, Japan
[6] Univ Nacl Autonoma Mexico, Natl Inst Nutr, Mexico City, DF, Mexico
[7] Univ Nacl Autonoma Mexico, Med Sur Clin & Fdn, Mexico City, DF, Mexico
[8] Aarhus Univ Hospitral, Dept Med 5, Aarhus, Denmark
[9] UCL, Sch Med, Dept Med, UCL Inst Liver & Digest Hlth, London W1N 8AA, England