[1] Imperial Coll, Hepatol, London, England
[2] Hlth Econ & Outcomes Res Ltd, Cardiff, S Glam, Wales
[3] Imperial Coll, Undergrad Med, London, England
[4] Imperial Coll NHS Trust, Liver & Antiviral Unit, London, England
[5] Swansea Univ, Sch Human & Hlth Sci, Swansea, W Glam, Wales