YAMADA Takuma, UENO Takuji, TAKEDA Takehiko, UNO Kaname, TANO Sho, UKAI Mayu, SUZUKI Teppei, HARATA Toko, KISHIGAMI Yasuyuki, OGUCHI Hidenori (Obstetrics and Gynecology, TOYOTA Memorial Hospital)

SUZUKI Teppei, TAKEDA Takehiko, UENO Takuji, YAMADA Takuma, TANO Sho, UNO Kaname, UKAI Mayu, KISHIGAMI Yasuyuki, OGUCHI Hidenori (Obstetrics and Gynecology, Toyota Memorial Hospital)

YAMAMOTO Kenta, MORI Nobuhiro, KANEISHI Kenji, HATA Toshiyuki (Faculty of Medicine, Kagawa Univesity)

MIMURA Takashi², ADACHI Katsuyuki¹, SUZUKI Yurina¹, FURUKAWA Seigi¹, FUKUDA Tomohiko¹, HARA Aki¹, HORIE Koji¹, YOKOTA Harushige¹ (1.Department of Gynecology, Saitama Cancer Center, 2.Department of Obstetrics and Gynecology, Showa University School of Medicine)

ABE Shuhei, HARADA Ayumi, HASEGAWA Yuri, SHIMADA Takako, YAMASAKI Kentaro, MIYAMOTO Masashi, YOSHIMURA Shuuichiro, KITAJIMA Michio, MIURA Kiyonori, MASUZAKI Hideaki (Department of Obstetrics and Gynecology, Nagasaki University School of Medicine)

YAMASHITA Tomoya, YAMAMOTO Kenta, TENKUMO Chiaki, ISHIBASHI Megumi, MORI Nobuhiro, KANENISHI Kenzi, HATA Toshiyuki (Department of Perinatology and Gynecology, Kagawa University Graduate School of Medicine)

SHIMADA Hiroshi^{1, 2}, NOFUJI Kazusa¹, SUZUKI Miki¹, HABATA Shutaro¹, FUJIBE Yuya², MIZUUCHI Masahito², BABA Tsuyoshi², ISHIOKA Shinichi², SAITO Tsuyoshi² (1.Obstetrics and Gynecology, Nikko Memorial Hospital, 2.Obstetrics, Sapporo Medical University School of Medicine)

ISOGAI Hatsuo¹, UENO Takuji¹, TAKEDA Takehiko¹, UNO Kaname¹, TANO Sho¹, UKAI Maya¹, SUZUKI Teppei¹, KISHIGAMI Yasuyuki¹, OGUCHI Hidenori¹, IWASE Mitsunori² (1.Department of Obstetrics and Gynecology, TOYOTA Memorial Hospital, 2.Department of Cardiology, TOYOTA Memorial Hospital)