Examination the managements of Retained Products of Conception (RPOC) : A retrospective study. (October 2021) - Tomonaga, Chiharu; Kajimura, Itsuki; Harada, Ayumi; Matsumoto, Kanako; Kitajima, Yuriko; Hasegawa, Yuri; Kitajima, Michio; Miura, Kiyonori