1) Department of Surgery (Division of Breast Surgical Oncology), Showa University School of Medicine, Tokyo, Japan
2) Department of Breast Surgical Oncology, St. Lukeʼs International Hospital, Tokyo, Japan
3) Department of Breast Oncology, Aichi Cancer Center Hospital, Nagoya, Japan
4) Division of Breast and Endocrine Surgery, Department of Surgery, St. Marianna University School of Medicine, Kawasaki, Japan
5) Department of Breast Oncology, Gunma Prefectural Cancer Center, Ota, Japan
6) Department of Breast and Endocrine Surgery, Toranomon Hospital, Tokyo, Japan
7) Department of Breast Surgery, Tazuke Kofukai Medical Institute, Kitano Hospital, Osaka, Japan
8) Department of Breast Surgery, National Hospital Organization Hokkaido Cancer Center, Sapporo, Japan
9) Department of Breast Oncology, Nippon Medical School, Tokyo, Japan
10) Department of Breast and Endocrine Surgery, Kindai University Faculty of Medicine, Osakasayama, Japan
11) Department of Breast Surgery, Nagoya City University Graduate School of Medical Sciences, Nagoya, Japan
12) Department of Breast and Endocrine Surgery, Kumamoto University Hospital, Kumamoto, Japan
13) Department of Breast Surgery, Shizuoka Cancer Center, Sunto, Japan
14) Department of Breast and Endocrine Surgery, Okayama University Hospital, Okayama, Japan
15) Department of Breast Disease Center, Asahikawa Medical University, Asahikawa, Japan
16) The Japanese HBOC Consortium, Tokyo, Japan
17) Diagnostics and Therapeutics of Intractable Diseases, Juntendo University, Graduate School of Medicine, Tokyo, Japan

Arisa Ata¹⁾, Sadako Akashi-Tanaka¹⁾, Yoshimi Ide¹⁾, Atsushi Yoshida²⁾, Masataka Sawaki³⁾, Koichiro Tsugawa⁴⁾, Yasuhiro Yanagita⁵⁾, Hidetaka Kawabata⁶⁾, Akira Yamauchi⁷⁾, Masato Takahashi⁸⁾, Hiroyuki Takei⁹⁾, Yoshifumi Komoike¹⁰⁾, Tatsuya Toyama¹¹⁾, Mutsuko Ibusuki-Yamamoto¹²⁾, Seiichiro Nishimura¹³⁾, Hiroyoshi Doihara¹⁴⁾, Masahiro Kitada¹⁵⁾, Yoshio Miki¹⁶⁾, Masami Arai¹⁷⁾, Shiro Yokoyama¹⁶⁾, Seigo Nakamura¹⁾¹⁶⁾