1. General Internal Medicine; Japanese Red Cross Nagoya Daini Hospital; Nagoya Japan
2. Department of Surgery; Teikyo University School of Medicine; Tokyo Japan
3. Department of Emergency Medicine, School of Medicine; University of Occupational and Environmental Health; KitaKyushu Japan
4. Department of Hemodialysis and Surgery, Chemotherapy Research Institute; International University of Health and Welfare; Ichikawa Japan
5. Hepatobiliary Pancreatic & Transplant Surgery Mie University Graduate School of Medicine; Mie Japan
6. Department of Gastroenterology and Hepatology; Tokyo Medical University; Tokyo Japan
7. Department of Surgery; Jichi Medical University; Shimotsuke Tochigi Japan
8. Department of Radiology; Kanazawa University, School of Medical Science; Kanazawa Japan
9. Clinical Education Center; Kyushu University Hospital; Fukuoka Japan
10. Otsu Municipal Hospital; Shiga
11. Kyoto Prefectural University of Medicine; Kyoto Japan
12. Department of Surgery; Kumamoto Regional Medical Center; Kumamoto Japan
13. Department of Radiology; Shinshu University School of Medicine; Matsumoto Japan
14. Department of Emergency and Critical Care Medicine; Kimitsu Chuo Hospital; Kisarazu Chiba Japan
15. Department of Surgery; Surgical Oncology and Science, Sapporo Medical University; Sapporo Japan
16. Department of Gastroenterology; Ogaki Municipal Hospital; Ogaki Japan
17. Department of Emergency and Critical Care Medicine; Ichinomiya Municipal Hospital; Ichinomiya Japan
18. Department of Radiology, Tokyo Metropolitan Health and Medical Treatment Corporation; Ohkubo Hospital; Tokyo Japan
19. Department of Surgery; National Hospital Organization Sendai Medical Center; Sendai Japan
20. Department of Surgery; Kinki University Faculty of Medicine; Osaka Japan
21. Division of Gastroenterology; Tohoku University Graduate School of Medicine; Sendai Japan
22. The University of Tokyo Graduate School of Public Policy; Health Policy Unit; Tokyo
23. Department of Family Medicine; Mie Prefectural Ichishi Hospital; Mie Japan
24. Gastroenterological Center; Yokohama City University Medical Center; Yokohama Japan