1. Royal Free Campus, UCL Medical School; Department of Surgery; Royal Free Hospital Rowland Hill Street London UK NW3 2PF
2. Royal Free Hampstead NHS Foundation Trust and UCL Institute of Liver and Digestive Health; Sheila Sherlock Liver Centre; Pond Street Hampstead London UK NW3 2QG
3. University College London; Division of Surgery & Interventional Science; 9th Floor, Royal Free Hospital Rowland Hill Street London London UK NW3 2PF
4. Athens Medical Group, Hospital P. Faliro; GI and Hepatology; 36 Areos str. Athens Greece 17562
5. Royal Free Hampstead NHS Foundation Trust; Sheila Sherlock Liver Centre; Pond Street Hampstead London UK NW3 2QG