1. Division of Surgical Oncology, Department of Surgery, Nagoya University Graduate School of Medicine, Nagoya, Japan
2. Department of General Surgery, Toyohashi Municipal Hospital, Toyohashi, Japan
3. Department of Surgery, Ogaki Municipal Hospital, Ogaki, Japan
4. Department of Surgery, Anjo Kosei Hospital, Anjo, Japan
5. Department of Gastroenterological Surgery, Aichi Cancer Centre Hospital, Nagoya, Japan
6. Nagoya University Hospital, Nagoya
7. Toyota Kosei Hospital, Toyota
8. Japanese Red Cross Nagoya Daiichi Hospital, Nagoya
9. Japanese Red Cross Nagoya Daini Hospital, Nagoya
10. Kiryu Kosei General Hospital, Kiryu
11. Yamashita Hospital, Ichinomiya
12. Handa City Hospital, Handa
13. Social Insurance Chukyo Hospital, Nagoya
14. Chubu Rosai Hospital, Nagoya
15. Nagoya Ekisaikai Hospital, Nagoya
16. Kasugai Municipal Hospital, Kasugai
17. Gifu Prefectural Federation of Agricultural Cooperatives for Health and Welfare Kumiai Hospital, Takayama
18. Daido Hospital, Nagoya
19. Enshu Hospital, Hamamatsu
20. Shizuoka Kosei Hospital, Shizuoka
21. Tsushima City Hospital, Tsushima
22. Tokai Hospital, Nagoya
23. Tokai Municipal Hospital, Tokai
24. Yachiyo Hospital, Anjo
25. Chita City Hospital, Chita