[1] Kameda Kyobashi Clin, Diagnost Imaging Ctr, Chuo Ku, Tokyo, Japan
[2] St Francis Hosp, Dept Radiol, Nagasaki, Japan
[3] St Marianna Univ, Sch Med, Dept Surg, Div Breast & Endocrine Surg, Kawasaki, Kanagawa, Japan
[4] Tokyo Med & Dent Univ Hosp, Dept Med Informat, Tokyo, Japan
[5] Tochigi Canc Ctr, Diagnost Imaging Div, Utsunomiya, Tochigi, Japan
[6] Iwate Cent Prefectural Hosp, Div Breast & Endocrine Surg, Morioka, Iwate, Japan
[7] Natl Hosp Org, Shikoku Canc Ctr, Dept Breast Oncol, Matsuyama, Ehime, Japan
[8] Natl Canc Ctr Hosp East, Div Breast & Med Oncol, Kashiwa, Chiba, Japan