^○Keiji Kuroda^1,2, Satoru Takamizawa¹, Hiroshi Motoyama³, Ryo Tsutsumi³, Rie Sugiyama³, Koji Nakagawa¹, Yasushi Kuribayashi³, Rikikazu Sugiyama¹ (1.Sugiyama Clinic Shinjuku, Center for Reproductive Medicine and Implantation Research, 2.Department of Obstetrics and Gynecology, Juntendo University Faculty of Medicine, Tokyo, Japan, 3.Sugiyama Clinic Marunouchi, Center for Reproductive Medicine and Endoscopy)

^○Natsuki Miyake¹, Tomoko Nakamura¹, Hideaki Tanaka¹, Reina Sonehara¹, Mayuko Murakami¹, Natsuki Nakanishi¹, Satoko Osuka¹, Daijiro Shibata², Maki Goto¹, Hiroaki Kajiyama¹ (1.Department of Obstetrics and Gynecology, Nagoya University, Aichi, Japan, 2.Department of Obstetrics and Gynecology, Chubu Rosai Hospital, Aichi, Japan)

^○Yusuke Mori, Hiroshi Kishi, Akari Shinoda, Miwa Hidaka, Takuma Sato, Yuta Kasahara, Eriko Shiraishi, Atsuko Kusuhara, Aikou Okamoto (Department of Obstetrics and Gynecology, The Jikei University, Tokyo, Japan)

^○Michiharu Horikawa¹, Yukiko Sawanobori¹, Kento Kato², Mizuha Imai¹, Shinji Okuwaki¹, Hiroshi Oota¹, Michio Ueta¹, Shirane Arita¹, Ryou Matsuoka¹, Yuji Taketani¹ (1.Artemis Women's Hospital, Tokyo, Japan, 2.Tama-Hokubu Medical Center, Tokyo, Japan)

^○Yuko Ikemoto, Saki Nagai, Kaoru Tejima, Juichiro Saito (Department of Obstetrics and Gynecology, Juntendo Tokyo Koto Geriatric Medical Center, Juntendo University Faculty of Medicine, Japan)

^○Shinichiro Saeki, Atsushi Fukui, Toru Kato, Yu Wakimoto, Hiroaki Shibahara (Department of Obstetrics and Gynecology, Hyogo college of medicine, Japan)

^○Erina Satake, Yoko Urata, Gentaro Izumi, Miyuki Harada, Yasushi Hirota, Kaori Koga, Osamu Wada Hiraike, Yutaka Osuga (Department of Obstetrics and Gynecology, Faculty of Medicine, The University of Tokyo, Japan)

^○Yukihiro Nishio, Yuri Kamino, Chikako Tsukahara, Ayako Hosoi, Shinsuke Koyama (Department of Obstetrics and Gynecology, Osaka Police Hospital, Japan)