Single curettage endometrial biopsy injury in the proliferative phase improves reproductive outcome of subsequent in vitro fertilization-embryo transfer cycle in infertile patients with repeated embryo implantation failure - Hayashi, T; Kitaya, K; Tada, Y; Taguchi, S; Funabiki, M; Nakamura, Y (Clin Exp Obstet Gynecol, 2013)