1 Department of Surgery, Kitakyushu Municipal Medical Center, Kitakyushu, Japan.
2 The Japan Clinical Research Support Unit and the Public Health Research Foundation, Tokyo, Japan.
3 Department of Breast Surgery, National Cancer Center Hospital, Tokyo, Japan.
4 Department of Breast and Endocrine Surgery, Okayama University Hospital, Okayama, Japan.
5 Department of Breast and Endocrine Surgery, Tokai University School of Medicine, 143 Shimokasuya, Isehara, Kanagawa, 259-1193, Japan.
6 Department of Breast Surgery, Miyagi Cancer Center, Natori, Japan.
7 Department of Breast Surgery, St. Luke's International Hospital, Tokyo, Japan.
8 Division of Breast and Endocrine Surgery, Department of Surgery, St. Marianna University School of Medicine, Kawasaki, Japan.
9 Department of Breast Surgery, Shikoku Cancer Center, Matsuyama, Japan.
10 Department of Surgical Oncology, Graduate School of Medicine, Tohoku University, Sendai, Japan.
11 Sapporo-kotoni Breast Clinic, Sapporo, Japan.
12 Department of Pathology, Nihon University School of Medicine, Tokyo, Japan.
13 Department of Breast Oncology, Cancer Institute Hospital, Tokyo, Japan.
14 Division of Breast Surgical Oncology, Department of Surgery, Showa University, Tokyo, Japan.
15 Department of Breast and Endocrine Surgery, Tokai University School of Medicine, 143 Shimokasuya, Isehara, Kanagawa, 259-1193, Japan. [email protected].