[1] UCL Med Sch, Inst Liver & Digest Hlth, London, England
[2] Aarhus Univ Hosp, Dept Clin Med, Aarhus, Denmark
[3] Virgen Macarena Virgen del Rocio Univ Hosp, UCM Digest Dis, Seville, Spain
[4] Virgen Macarena Virgen del Rocio Univ Hosp, CIBEREHD, Seville, Spain
[5] Royal Free Hosp, Intens Care Unit, London, England