| Affiliation: | 1. Center for Global Health Mito Kyodo General Hospital University of Tsukuba, Ibaraki, Japan;2. Department of Surgery, Teikyo University School of Medicine, Tokyo, Japan;3. Division of General Surgery, Lin‐Kou Chang Gung Memorial Hospital, Tauyuan, Taiwan;4. Department of medical informatics, Niigata University, Niigata, Japan;5. Department of Health Policy, National Center for Child Health and Development, Tokyo, Japan;6. Department of Gastroenterological Surgery, Yokohama City University Graduate School of Medicine, Kanagawa, Japan;7. Department of Gastroenterology, Ogaki Municipal Hospital, Gifu, Japan;8. Department of Infection Control and Prevention, Teikyo University, Tokyo, Japan;9. Department of Gastroenterology and Hepatology, Tokyo Medical University Hospital, Tokyo, Japan;10. Department of General Internal Medicine, Japanese Red Cross Nagoya Daini Hospital, Aichi, Japan;11. Department of Surgery, Yuan's General Hospital, Kaohsiung, Taiwan;12. Department of Internal Medicine, National Taiwan University Hospital, National Taiwan University College of Medicine, Taipei, Taiwan;13. Second Department of Surgery, Wakayama Medical University School of Medicine, Wakayama, Japan;14. Emeritus Professor, Graduate School of Medicine, Chiba University, Chiba, Japan;15. Department of Surgery, Institute of Gastroenterology, Tokyo Women's Medical University, Tokyo, Japan |
