[1] UCL Inst Liver & Digest Hlth, Dept Hepatol, London, England
[2] UCL Inst Liver & Digest Hlth, Primary Care & Populat Hlth, London, England
[3] UCL, Primary Care & Populat Hlth, London, England
[4] Whittington Hosp, Dept Hepatol, London, England
[5] Camden CCG, Primary Care, London, England
[6] Islington CCG, Primary Care, London, England
[7] Univ Southampton, Publ Hlth Sci & Med Stat, Southampton, Hants, England