Combined benign Brenner tumor and clear cell adenocarcinoma of the ovary. Issue 1 (7th July 2015) - Matsumoto, Hirofumi; Nakanishi, Takaya; Aoyama, Hajime; Saio, Masanao; Kudaka, Wataru; Aoki, Yoichi; Teshima, Shinichi; Kato, Seiya