1. Department of Gastrointestinal Medical Oncology National Cancer Center Hospital Tokyo Japan
2. Department of Head and Neck Esophageal Medical Oncology National Cancer Center Hospital Tokyo Japan
3. Department of Radiation Oncology Showa University School of Medicine Tokyo Japan
4. Esophageal Surgery Division National Cancer Center Hospital Tokyo Japan
5. Department of Gastroenterological Surgery National Hospital Organization Shikoku Cancer Center Matsuyama Japan
6. Department of Gastroenterological Surgery Niigata Cancer Center Hospital Niigata Japan
7. Department of Gastroenterology Surgery Kochi Health Sciences Center Kochi Japan
8. Department of Gastroenterology and Gastrointestinal Oncology National Cancer Center Hospital East Kashiwa Japan
9. Department of Gastroenterological Surgery National Hospital Organization Kyushu Cancer Center Fukuoka Japan
10. Surgical Oncology Hiroshima University Hiroshima Japan
11. Clinical Trial Promotion Department Chiba Cancer Center Chiba Japan
12. Department of Medical Oncology and Hematology Oita University Faculty of Medicine Yufu Japan
13. Department of Surgery Iwate Medical University Morioka Japan
14. Cancer Chemotherapy Hokkaido University Hospital Cancer Center Sapporo Japan
15. Laboratory for Cancer GenomicsRIKEN Center for Integrative Medical Sciences Yokohama Japan
16. Division of Bioinformatics Research InstituteNational Cancer Center Tokyo Japan
17. Research Management Division Clinical Research Support Office National Cancer Center Hospital Tokyo Japan
18. Biostatistics Division Center for Research Administration and Support National Cancer Center Tokyo Japan
19. Graduate School of Health Innovation Kanagawa University of Human Services Yokosuka Japan
20. Department of Surgery Keio University School of Medicine Tokyo Japan