[1] Royal Infirm Edinburgh NHS Trust, Liver Unit, Edinburgh, Midlothian, Scotland
[2] Royal Infirm Edinburgh NHS Trust, Dept Radiol, Edinburgh, Midlothian, Scotland
[3] Univ Edinburgh, Wellcome Trust Clin Res Facil, Edinburgh, Midlothian, Scotland
[4] Univ Edinburgh, Ctr Inflammat Res, Edinburgh, Midlothian, Scotland