1. Yong Loo Lin School of Medicine, National University of Singapore, Singapore
2. Division of Gastroenterology and Hepatology, Department of Medicine, National University Hospital, Singapore
3. National University Centre for Organ Transplantation, National University Health System, Singapore
4. Division of Hepatobiliary and Pancreatic Surgery, Department of Surgery, University Surgical Cluster, National University Hospital, Singapore
5. Cancer Science Institute of Singapore, National University of Singapore, Singapore
6. Department of Medicine, Division of Gastroenterology and Hepatology, University of Arizona College of Medicine, Phoenix
7. AW Morrow Gastroenterology and Liver Centre, Royal Prince Alfred Hospital, Sydney, Australia
8. Ark Surgical Practice, Mount Elizabeth Hospital, Singapore, Singapore
9. Division of Cancer Control and Population Sciences, UPMC Hillman Cancer Center, Pittsburgh, Pennsylvania
10. Department of Epidemiology, School of Public Health, University of Pittsburgh, Pittsburgh, Pennsylvania
11. Department of Gastroenterology, Hepatology and Endocrinology, Hannover Medical School, Hannover, Germany
12. Division of Gastroenterology, University of California at San Diego, La Jolla