Unexpectedly low frequency of BRCA1/2 deleterious mutations in Japanese patients with breast cancer. Issue 1 (8th June 2017) - Sakamoto, Ikuko; Nakagomi, Hiroshi; Okimoto, Kenichiro; Inoue, Masayuki; Hirotsu, Yosuke; Amemiya, Kenji; Mochizuki, Hitoshi; Omata, Masao