1. Department of Surgery; Teikyo University School of Medicine; 2-11-1 Kaga, Itabashi-ku Tokyo 173-8605 Japan
2. Section of Hepatobiliary and Pancreatic Surgery; Washington University in Saint Louis School of Medicine; Saint Louis MO USA
3. Department of Surgery; University of Cincinnati College of Medicine; Cincinnati OH USA
4. Department of Surgery; Indiana University School of Medicine; Indianapolis IN USA
5. Center for Clinical Infectious Diseases; Jichi Medical University; Tochigi Japan
6. Clinical Research Center Kaken Hospital; International University of Health and Welfare; Ichikawa Japan
7. Department of Emergency and Critical Care Medicine; Ichinomiya Municipal Hospital; Ichinomiya Japan
8. Department of Surgery; Academic Medical Center; Amsterdam The Netherlands
9. Clinical Surgery; The University of Edinburgh; Edinburgh UK
10. Department of Surgery; University of Heidelberg; Heidelberg Germany
11. Department of Gastroenterology; Ogaki Municipal Hospital; Ogaki Japan
12. General Internal Medicine; Nagoya Daini Red Cross Hospital; Nagoya Japan
13. Department of Surgical Oncology and Gastroenterological Surgery; Sapporo Medical University School of Medicine; Sapporo Japan
14. Department of Medicine and Clinical Oncology; Graduate School of Medicine Chiba University; Chiba Japan
15. Department of Gastroenterology and Hepatology; Tokyo Medical University; Tokyo Japan
16. Department of Radiology; Kanazawa University Graduate School of Medical Science; Kanazawa Japan
17. Department of Surgery, Institute of Gastroenterology; Tokyo Women's Medical University; Tokyo Japan
18. Department of Surgery; Kitakyushu Municipal Yahata Hospital; Kitakyushu Japan
19. Department of Endoscopy and Ultrasound; Kawasaki Medical School; Okayama Japan
20. Department of Preventive Medicine and Community Health, School of Medicine; University of Occupational and Environmental Health; Kitakyushu Japan
21. Department of Surgery; Toho University Medical Center Ohashi Hospital; Tokyo Japan
22. Department of Surgery; The University of Auckland; Auckland New Zealand
23. Department of Surgical Gastroenterology; Seth G S Medical College and K E M Hospital; Mumbai India
24. HepatoBiliary Surgery and Liver Transplantation, Asan Medical Center; Ulsan University; Seoul Korea
25. Department of Surgery, Hepatic Surgery Centre, Tongji Hospital, Tongi Medical College; Huazhong Universty of Science & Technology; Wuhan China
26. Department of Gastroenterological Surgery; Fukuoka University School of Medicine; Fukuoka Japan
27. Department of Internal Medicine, Second Teaching Hospital; Fujita Health University School of Medicine; Nagoya Aichi Japan
28. Department of Surgery I; Sapporo Medical University Hospital; Sapporo Hokkaido Japan
29. Toho University School of Medicine; Tokyo Japan