1. Department of Gastroenterology; Ogaki Municipal Hospital; 4-86 Minaminokawa-cho Ogaki Gifu 503-8502 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; University of Cincinnati College of Medicine; Cincinnati OH USA
5. Department of Emergency and Critical Care Medicine; Ichinomiya Municipal Hospital; Ichinomiya Japan
6. Department of Surgery; Indiana University School of Medicine; Indianapolis IN USA
7. Department of Surgery; Academic Medical Center; Amsterdam The Netherlands
8. Clinical Surgery; The University of Edinburgh; Edinburgh UK
9. Department of Surgery; University of Heidelberg; Heidelberg Germany
10. General Internal Medicine; Nagoya Daini Red Cross Hospital; Nagoya Japan
11. Department of Surgical Oncology and Gastroenterological Surgery; Sapporo Medical University School of Medicine; Sapporo Japan
12. Department of Medicine and Clinical Oncology; Graduate School of Medicine Chiba University; Chiba Japan
13. Department of Gastroenterology and Hepatology; Tokyo Medical University; Tokyo Japan
14. Clinical Research Center Kaken Hospital; International University of Health and Welfare; Ichikawa Japan
15. Department of Gastroenterological Surgery; Fukuoka University School of Medicine; Fukuoka Japan
16. Department of Surgery; Kitakyushu Municipal Yahata Hospital; Kitakyushu Japan
17. Department of Radiology; Kanazawa University Graduate School of Medical Science; Kanazawa Japan
18. Department of Endoscopy and Ultrasound; Kawasaki Medical School; Okayama Japan
19. Department of Surgery; Institute of Gastroenterology Tokyo Women's Medical University; Tokyo Japan
20. Department of Surgery; The University of Auckland; Auckland New Zealand
21. Division of General Surgery, Health Sciences; University of Cape Town; Cape Town South Africa
22. Department of Surgery, Queen Mary Hospital; The University of Hong Kong; Hong Kong Hong Kong
23. Department of Hepato-Pancreato-Biliary Surgery; Hospital Selayang; Batu caves Malaysia
24. Department of Surgery, Hospital Italianio; University of Buenos Aires; Buenos Aires Argentina
25. Center for Clinical Infectious Diseases; Jichi Medical University; Tochigi Japan
26. Department of Surgery; Toho University Medical Center Ohashi Hospital; Tokyo Japan
27. Department of Preventive Medicine and Community Health, School of Medicine; University of Occupational and Environmental Health; Kitakyushu Japan
28. Department of Surgery, Hepatic Surgery Centre, Tongji Hospital, Tongi Medical College; Huazhong University of Science and Technology; Wuhan China
29. Department of Surgical Oncology; Lilavati Hospital and Research Centre; Mumbai India
30. HepatoBiliary Surgery and Liver Transplantation, Asan Medical Center; Ulsan University; Ulsan Korea
31. Division of Surgical and Specialty Services; Flinders Medical Centre; Bedford Park Australia
32. Chang Gung Memorial Hospital; Chang Gung University; Taoyuan Taiwan