[1] Kings Coll London, Inst Liver Studies, London WC2R 2LS, England
[2] Univ London Imperial Coll Sci Technol & Med, Sect Hepatol, London, England
[3] Univ Birmingham, NIHR Biomed Res Unit, Birmingham, W Midlands, England
[4] Univ Birmingham, Liver Res Ctr, Birmingham, W Midlands, England