1. Department of Surgery, Gastroenterological Center, Yokohama City University Medical Center, Yokohama, Japan
2. Department of Clinical Oncology, Aichi Cancer Center Hospital, Nagoya, Japan
3. Department of Gastroenterology and Gastrointestinal Oncology, National Cancer Center Hospital East, Kashiwa, Japan
4. Department of Immunology, Nagoya University Graduate School of Medicine, Aichi, Japan
5. Division of Gastrointestinal Oncology, Shizuoka Cancer Center, Shizuoka, Japan
6. Division of Gastrointestinal Surgery, Kanagawa Cancer Center, Kanagawa, Japan
7. Division of Medical Oncology, Japanese Red Cross Ishinomaki Hospital, Miyagi, Japan
8. Department of Gastrointestinal Medical Oncology, National Cancer Center Hospital, Tokyo, Japan
9. Department of General Surgery, Kurashiki Central Hospital, Okayama, Japan
10. Department of Hematology/Oncology, Japan Community Healthcare Organization, Fukuoka, Japan
11. Department of Gastrointestinal Surgery, Sendai City Medical Center, Sendai Open Hospital, Miyagi, Japan
12. Department of Gastroenterological Surgery, Gunma Prefectural Cancer Center, Gunma, Japan
13. Department of Gastroenterological Surgery, Japanese Red Cross Tokushima Hospital, Tokushima, Japan
14. Department of Cancer Multimodel Therapy Center, Kurume University Hospital, Fukuoka, Japan
15. Department of Surgery and Science, Graduate School of Medical Sciences, Kyushu University, Fukuoka, Japan
16. Research and Development Center for Medical Education, Department of Clinical Skills Education, Kitasato University School of Medicine, Sagamihara, Japan
17. Department of Lower Gastrointestinal Surgery, Kitasato University School of Medicine, Sagamihara, Japan
18. Division of Cancer Chemotherapy, Hokkaido University Hospital Cancer Center, Sapporo, Japan
19. Department of Surgery, National Hospital Organization Osaka National Hospital, Osaka, Japan
20. Japan Medical Affairs, Japan Oncology Business Unit, Takeda Pharmaceutical Company Ltd, Tokyo, Japan
21. Department of Biostatistics, Yokohama City University School of Medicine, Yokohama, Japan
22. Division of Molecular Diagnosis and Cancer Prevention, Saitama Cancer Center, Saitama, Japan
23. Pathology Division, Exploratory Oncology Research and Clinical Trial Center, National Cancer Center, Chiba, Japan
24. now with the Research Institute for Biomedical Sciences, Tokyo University of Science, Tokyo, Japan
25. National Hospital Organization, Disaster Medical Center, Tokyo, Japan
26. Division of Translational Informatics, Exploratory Oncology Research and Clinical Trial Center, National Cancer Center, Chiba, Japan