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