1. Division of Hepatobiliary and Pancreatic Surgery and Liver Transplantation, University Surgical Cluster, National University Hospital, Singapore.
2. National University Center for Organ Transplantation, National University Hospital, Singapore.
3. Department of Hepatobiliary and Liver Transplantation Surgery, Hôpital Beaujon, Assistance Publique-Hopitaux de Paris and University of Paris, Paris, France.