1. National Cancer Center Hospital East, Kashiwa, Japan;
2. Gastroentelorogical Center, Yokohama City University Medical Center, Yokohama, Japan;
3. Department of Gastroenterology and Gastrointestinal Oncology, National Cancer Center Hospital East, Chiba, Japan;
4. Division of Gastrointestinal Oncology, Shizuoka Cancer Center, Shizuoka, Japan;
5. Division of Medical Oncology, Japanese Red Cross Ishinomaki Hospital, Miyagi, Japan;
6. Department of Gastroenterological Surgery, Kanagawa Cancer Center, Yokohama, Japan;
7. Department of Surgery and Science, Graduate School of Medical Sciences, Kyushu University, Fukuoka, Japan;
8. Research and Development Center for Medical Education, Department of Clinical Skills Education, Kitasato University School of Medicine, Sagamihara, Japan;
9. Department of Lower Gastrointestinal Surgery, Kitasato University School of Medicine, Sagamihara, Japan;
10. Hokkaido University Hospital Cancer Center, Hokkaido, Japan;
11. Department of Surgery, National Hospital Organization Osaka National Hospital, Osaka, Japan;
12. Japan Medical Affairs, Japan Oncology Business Unit, Takeda Pharmaceutical Company Ltd., Tokyo, Japan;
13. Japan Medical Affairs, Japan Oncology Business Unit, Takeda Pharmaceutical Company ltd, Tokyo, Japan;
14. Department of Biostatistics, School of Medicine, Yokohama City University, Yokohama, Japan;
15. Division of Molecular Diagnosis and Cancer Prevention, Saitama Cancer Center, Saitama, Japan;
16. Exploratory Oncology Research & Clinical Trial Center, National Cancer Center, Chiba, Japan;
17. National Hospital Organization, Disaster Medical Center, Tokyo, Japan;
18. Division of Translational Informatics, Exploratory Oncology Research and Clinical Trial Center, National Cancer Center, Chiba, Japan;
19. Department of Clinical Oncology, Aichi Cancer Center Hospital, Nagoya, Japan;