[1] Nagoya City Univ Hosp, Dept Breast Surg, Nagoya, Aichi, Japan
[2] Kumamoto Univ, Grad Sch Med Sci, Dept Breast & Endocrine Surg, Kumamoto, Japan
[3] Tenri Hosp, Dept Breast Surg, Nara, Japan
[4] Iwate Med Univ, Dept Surg, Morioka, Iwate, Japan
[5] Chiba Canc Ctr, Dept Breast Surg, 666-2 Nitonacho, Chiba 2608717, Japan
[6] NHO Hokkaido Canc Ctr, Dept Breast Surg, Sapporo, Hokkaido, Japan
[7] Kurume Univ Hosp, Dept Surg, Kurume, Fukuoka, Japan
[8] St Marianna Univ, Sch Med Hosp, Div Breast & Endocrine Surg, Dept Surg, Kawasaki, Kanagawa, Japan
[9] Yokohama City Univ, Med Ctr, Dept Breast & Thyroid Surg, Yokohama, Kanagawa 232, Japan
[10] Nahanishi Clin Okinawa, Dept Breast Surg, Naha, Japan
[11] Osaka Med Ctr Canc & Cardiovasc Dis, Dept Clin Oncol, Osaka, Japan
[12] Hiroshima City Hiroshima Citizens Hosp, Dept Breast Surg, Hiroshima, Japan
[13] Ueo Breast Canc Hosp, Dept Surg, Oita, Japan
[14] Toranomon Gen Hosp, Dept Med Oncol, Tokyo, Japan
[15] Gunma Prefectural Canc Ctr, Dept Breast Oncol, Ota, Japan
[16] Kyoto Univ, Grad Sch Med, Dept Biomed Stat & Bioinformat, Kyoto, Japan
[17] Kyoto Univ, Grad Sch Med, Breast Surg, Kyoto, Japan
[18] Canc Inst Hosp JFCR, Ctr Breast Oncol, Tokyo, Japan