1. Breast Oncology Center, Cancer Institute Hospital, Japanese Foundation for Cancer Research, Tokyo, Japan
2. Japanese Red Cross Aichi Medical Center Nagoya Daiichi Hospital, Nagoya, Japan
3. Fukushima Medical University, Fukushima, Japan
4. Hiroshima City Hiroshima Citizens Hospital, Hiroshima, Japan
5. National Hospital Organization Nagoya Medical Center, Nagoya, Japan
6. University of Tsukuba Hospital/Ibaraki Prefectural Central Hospital, Kasama, Japan
7. Hachinohe City Hospital, Hachinohe, Japan
8. Gunma Prefectural Cancer Center, Ota, Japan
9. Saitama Cancer Center, Ina, Japan
10. JCHO Kurume General Hospital, Kurume, Japan
11. Sapporo Kotoni Breast Clinic, Sapporo, Japan
12. Kansai Rosai Hospital, Amagasaki, Japan
13. Osaka International Cancer Institute, Osaka, Japan
14. University of Occupational and Environmental Health, Kitakyushu, Japan
15. Juntendo University, Tokyo, Japan
16. National Cancer Center Hospital East, Kashiwa, Japan