1. Department of Gastroenterological Surgery; Fukuoka University Hospital, Fukuoka University School of Medicine; 7-45-1 Nanakuma, Jonan-ku Fukuoka 814-0180 Japan
2. Department of Surgery; Teikyo University School of Medicine; Tokyo Japan
3. Section of Hepatobiliary and Pancreatic Surgery; Washington University in Saint Louis School of Medicine; Saint Louis MO USA
4. Department of Surgery; Indiana University School of Medicine; Indianapolis IN USA
5. Department of Surgery; Academic Medical Center; Amsterdam The Netherlands
6. Clinical Surgery; The University of Edinburgh; Edinburgh UK
7. Department of Surgery; University of Heidelberg; Heidelberg Germany
8. Center for Clinical Infectious Diseases; Jichi Medical University; Tochigi Japan
9. First Department of Surgery; Agia Olga Hospital; Athens Greece
10. Department of Surgery; The University of Auckland; Auckland New Zealand
11. Department of Surgery; Seoul National University College of Medicine; Seoul Korea
12. Department of Surgery; Hospital Italianio, University of Buenos Aires; Buenos Aires Argentina
13. Division of Surgical and Specialty Services; Flinders Medical Centre; Adelaide Australia
14. Department of Surgery, Hepatic Surgery Centre; Tongji Hospital, Tongi Medical College, Huazhong Universty of Science and Technology; Wuhan China
15. Department of Surgery, Surgery Centre; Hong Kong Sanatorium and Hospital; Hong Kong Hong Kong
16. Department of Surgery; The University of Hong Kong, Queen Mary Hospital; Hong Kong Hong Kong
17. Department of Surgical Oncology; Lilavati Hospital and Research Centre; Mumbai India
18. Department of Emergency and Critical Care Medicine; Ichinomiya Municipal Hospital; Ichinomiya Japan
19. Clinical Research Center Kaken Hospital; International University of Health and Welfare; Ichikawa Japan
20. Department of Medicine and Clinical Oncology; Graduate School of Medicine, Chiba University; Chiba Japan
21. Department of Gastroenterology and Hepatology; Tokyo Medical University; Tokyo Japan
22. Department of Surgical Gastroenterology; Seth G S Medical College and K E M Hospital; Mumbai India