1. Department of Surgery, Institute of Gastroenterology; Tokyo Women's Medical University; 8-1 Kawada-cho, Shinjuku-ku Tokyo 162-8666 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. Department of Surgery; The University of Auckland; Auckland New Zealand
9. Department of Emergency and Critical Care Medicine; Ichinomiya Municipal Hospital; Ichinomiya Japan
10. Clinical Research Center Kaken Hospital, International University of Health and Welfare; Ichikawa Japan
11. Department of Surgical Oncology and Gastroenterological Surgery; Sapporo Medical University School of Medicine; Sapporo Japan
12. Department of Surgery; Kitakyushu Municipal Yahata Hospital; Kitakyushu Japan
13. Department of Radiology; Kanazawa University Graduate School of Medical Science; Kanazawa Japan
14. Department of Endoscopy and Ultrasound; Kawasaki Medical School; Okayama Japan
15. Center for Clinical Infectious Diseases; Jichi Medical University; Tochigi Japan
16. Department of Surgical Gastroenterology; Seth G S Medical College and K E M Hospital; Mumbai India
17. Department of Surgical Oncology; Lilavati Hospital and Research Centre; Mumbai India
18. Department of Hepato-Pancreato-Biliary Surgery; Hospital Selayang; Kuala Lampur Malaysia
19. Department of Internal Medicine, Asan Medical Center; University of Ulsan; Seoul Korea
20. Department of Surgery; College of Medicine-Philippine General Hospital, University of the Philippines; Manila Philippines
21. Yuan's General Hospital; Kaohsiung Taiwan
22. Department of Surgery; Seoul National University College of Medicine; Seoul Korea