[1] UCL, Inst Liver & Digest Hlth, Royal Free Hosp, London, England
[2] Univ Nottingham, Ctr Digest Dis, Nottingham, England
[3] Cambridge Univ Hosp NHS Fdn Trust, Dept Med, Liver Unit, NIHR Cambridge Biomed Res Ctr, Cambridge, England
[4] Oxford Univ Hosp NHS Fdn Trust, Dept Gastroenterol & Hepatol, Oxford Liver Unit, Oxford, England
[5] PHMR Ltd, London, England