[1] Univ Zurich Hosp, Dept Surg, Swiss HPB & Transplant Ctr, CH-8091 Zurich, Switzerland
[2] Univ Zurich Hosp, Dept Gastroenterol & Hepatol, Zurich, Switzerland
[3] Paris S Univ, Paul Brousse Hosp, Hepato Biliary Ctr, Villejuif, France
[4] Royal Free Hosp, Royal Free Sheila Sherlock Liver Ctr, London, England
[5] UCL, London WC1E 6BT, England
[6] European Liver & Intestine Transplant Assoc, Birmingham, W Midlands, England