^○Yung-Kuei Soong (Dept. of OB/GYN, Chang Gung Memorial Hospital, Taiwan)

^○Osamu Tsutsumi (Department of Reproduction and Gynecologic Endoscopy, Sanno Hospital, Tokyo, Japan)

^○Jing Guan (Peking University People’s Hospital, China)

^○Atsushi Fukui, Shinichiro Saeki, Yu Wakimoto, Ayano Yamaya, Hiroaki Shibahara (Department of Obstetrics and Gynecology, Hyogo College of Medicine, Nishinomiya, Hyogo, Japan)

^○Yukiyo Kumazawa, Kazue Togashi, Hiromitsu Shirasawa, Wataru Sato, Yukihiro Terada (Department of Obstetrics and Gynecology, Akita University, Akita, Japan)