[1] Kings Coll Hosp London, Inst Liver Studies, London SE5 8RX, England
[2] St Vincents Hosp, Dublin 4, Ireland
[3] Univ Birmingham Hosp Trust, Birmingham, W Midlands, England
[4] Royal Free Hosp, London NW3 2QG, England
[5] Scottish Transplant Unit, Edinburgh, Midlothian, Scotland
[6] Addenbrookes Hosp, Cambridge, England
[7] Freeman Rd Hosp, Newcastle Upon Tyne NE7 7DN, Tyne & Wear, England