Microdissection testicular sperm extraction in five Japanese patients with non‐mosaic Klinefelter's syndrome. - Chihara, Makoto; Ogi, Kanna; Ishiguro, Tatsuya; Yoshida, Kunihiko; Godo, Chikako; Takakuwa, Koichi; Enomoto, Takayuki (Reproductive Medicine & Biology, 2018)