1. Department of Basic Pathology, National Defense Medical College, Tokorozawa, Saitama, Japan
2. Department of Diagnostic Pathology, National Cancer Center Hospital, Chuo-ku, Tokyo, Japan
3. Department of Pathology, The Cancer Institute of Japan Foundation for Cancer Research, Koto-ku, Tokyo, Japan
4. Department of Diagnostic Pathology, Social Medical Corporation Hakuaikai Sagara Hospital, Kagoshima-city, Kagoshima, Japan
5. Department of Pathology, Toranomon Hospital, Minato-ku, Tokyo, Japan
6. Department of Pathology, Tokai University School of Medicine, Isehara, Kanagawa, Japan
7. Department of Clinical Laboratories, National Hospital Organization Kasumigaura Medical Center, Tsuchiura, Ibaraki, Japan
8. Department of Diagnostic Pathology, National Hospital Organization Kure Medical Center and Chugoku Cancer Center, Kure, HIroshima, Japan
9. Department of Pathology and Molecular Diagnostics, Aichi Cancer Center Hospital, Nagoya, Aichi, Japan
10. Department of Pathology, National Hospital Organization Nagoya Medical Center, Nagoya, Aichi, Japan
11. Clinical Oncology and Pathology Division, National Cancer Center Exploratory Oncology Research and Clinical Trial Center, Kashiwa, Chiba, Japan
12. Department of Molecular Pathology, Yokohama City University School of Medicine, Yokohama, Kanagawa, Japan
13. Department of Diagnostic Pathology, Niigata Cancer Center Hospital, Niigata-city, Niigata, Japan
14. Department of Pathology, Saitama Cancer Center, Ina, Saitama, Japan
15. Department of Diagnostic Pathology, National Hospital Organization Tokyo Medical Center, Meguro-ku, Tokyo, Japan
16. Department of Diagnostic Pathology, Chiba Cancer Center, Chiba-city, Chiba, Japan
17. Department of Pathology, Kitasato University School of Medicine, Sagamihara, Kanagawa, Japan
18. Department of Experimental Pathology and Tumor Biology, Nagoya City University Graduate School of Medical Sciences, Nagoya, Aichi, Japan
19. Pathology Division, Breast Center, Kameda Medical Center, Chuo-ku, Tokyo, Japan
20. Department of Diagnostic Pathology, Nippon Medical School Hospital, Bunkyo-ku, Tokyo, Japan
21. Department of Pathology, Kindai University Faculty of Medicine, Osaka-sayama, Osaka, Japan
22. Department of Pathology, Okayama University, Okayama-city, Okayama, Japan
23. Department of Diagnostic Pathology, Kitakyushu Municipal Medical Center, Kitakyushu, Fukuoka, Japan
24. Department of Pathology and Cytopathology, Osaka International Cancer Institute, Osaka-city, Osaka
25. Department of Breast Oncology, Niigata Cancer Center Hospital, Niigata-city, Niigata, Japan
26. Department of Breast and Endocrine Surgery, Okayama University Hospital, Okayama-city, Okayama, Japan
27. Department of Breast Oncology, Aichi Cancer Center Hospital, Nagoya, Aichi, Japan