1. Department of Gastroenterological and Pediatric Surgery; Oita University Faculty of Medicine; Oita Japan
2. Department of Surgery; Keio University School of Medicine; Tokyo Japan
3. Department of Clinical Statistics and Data Management; Oita University Faculty of Medicine; Oita Japan
4. Department of Surgery; Tokyo Metropolitan Komagome Hospital; Tokyo Japan
5. Department of Hemodialysis and Surgery; Chemotherapy Research Institute; International University of Health and Welfare; Chiba Japan
6. Department of Surgery; Teikyo University School of Medicine; Tokyo Japan
7. Department of Surgery; Seoul National University Bundang Hospital; Seongnam-si Korea
8. Division of General Surgery; Lin-Kou Chang Gung Memorial Hospital; Tauyuan Taiwan
9. Department of Surgery; Fukuoka Kieikai Hospital; Fukuoka Japan
10. Department of Surgery; Fujinomiya City General Hospital; Shizuoka Japan
11. Minimally Invasive Surgery Center; Yotsuya Medical Cube; Tokyo Japan
12. Department of Surgery; Konyang University Hospital; Daejeon Korea
13. Department of Surgery; Show Chwan Memorial Hospital; Changhua Taiwan
14. Department of Surgery and Department of Electrical Engineering; Far-Eastern Memorial Hospital and Yuan Ze University; New Taipei city Tauyuan Taiwan
15. Department of Surgery; Toho University Ohashi Medical Center; Tokyo Japan
16. Department of Surgery; The Jikei University Kashiwa Hospital; Chiba Japan
17. Department of Gastrointestinal and Pediatric Surgery; Tokyo Medical University; Tokyo Japan
18. Department of Surgery; Yonsei University Gangnam Severance Hospital; Seoul Korea
19. Department of Surgery; Seoul National University Hospital; Seoul Korea
20. Department of Surgery; Chonbuk National University Hospital; Jeonju Korea
21. Department of Surgery; Keimyung University Dongsan Medical Center; Daegu Korea
22. Department of Surgery; University of Ulsan College of Medicine and Asan Medical Center; Seoul Korea
23. Department of Surgery; Chungnam National University Hospital; Daejeon Korea
24. Department of Surgery; Eulji University Hospital; Daejeon Korea
25. Department of Surgery; Yeungnam University; Daegu Korea
26. Department of Surgery; Sungkyunkwan University; Seoul Korea
27. Department of Surgery; National Cheng Kung University Hospital; Tainan Taiwan
28. Department of Surgery; Yuan's General Hospital; Kaohsiung Taiwan
29. Division of General Surgery; Tri-Service General Hospital; National Defense Medical Center; Taipei Taiwan
30. Department of Surgery; Taichung-Veterans General Hospital; Taichung Taiwan
31. Department of Surgery; Kaohsiung Medical University Hospital; Kaohsiung Taiwan
32. Department of Surgery; Musashino Tokushukai Hospital; Tokyo Japan
33. Department of Surgery; Institute of Gastroenterology; Tokyo Women's Medical University; Tokyo Japan
34. Department of Gastrointestinal and Hepato-Biliary-Pancreatic Surgery; Nippon Medical School; Tokyo Japan
35. Department of Surgery; Nippon Medical School; Tokyo Japan
36. Department of Surgery; Kansai Rosai Hospital; Hyogo Japan
37. Department of General and Pancreatic Surgery; Quality and Safety in Healthcare; Fujita Health University; Aichi Japan
38. Department of Surgery; Nagoya Daini Red Cross Hospital; Aichi Japan
39. Department of Surgery; Kameda Medical Center; Chiba Japan
40. Department of Surgery; Tohoku Rosai Hospital; Miyagi Japan
41. Department of Digestive Surgery; Toranomon Hospital; Tokyo Japan
42. Department of Gastroenterological Surgery; St. Luke's International Hospital; Tokyo Japan
43. Department of Surgery; The Jikei University School of Medicine; Tokyo Japan
44. Laparoscopic Surgery Center; Tokai Hospital; Aichi Japan
45. Department of Surgery; Saitama Medical Center; Jichi Medical University; Saitama Japan
46. Department of Surgery; Jichi Medical University; Tochigi Japan
47. Director; Chiba Tokushukai Hospital; Chiba Japan
48. President; Oita University; Oita Japan
49. Department of Gastroenterological Surgery; Fukuoka University School of Medicine; Fukuoka Japan
50. Department of Surgery; Sanno Hospital; International University of Health and Welfare; Tokyo Japan
51. Japanese Red Cross Miyagi Blood Center; Miyagi Japan
52. Department of Surgery; Teikyo University School of Medicine; University Hospital; Mizonokuchi Kanagawa Japan
53. Department of Surgery; Ageo Central General Hospital; Saitama Japan
54. Department of Health Policy and Department of Clinical Epidemiology; National Center for Child Health and Development; Tokyo Japan
55. Department of Gastroenterological Surgery; Yokohama City University Graduate School of Medicine; Kanagawa Japan
56. Emeritus Professor; Graduate School of Medicine; Chiba University; Chiba Japan