Keita YATSUKI, Eiji RYO, Mioko GOJO, Kei HASHIMOTO, Miki NISHIZAWA, Hideo KAMATA, Chikara KIHIRA, Koichiro KIDO, Kazunori NAGASAKA (Obstetrics and Gynecology, Teikyo University)

Mika MIYAMORI, Takuya MISUGI, Kohei KITADA, Yasushi KURIHARA, Mie TAHARA, Akihiro HAMURO, Akemi NAKANO, Daisuke TACHIBANA (Women’s Life Care Medicine, Osaka Metropolitan University)

Yusuke SUZUKI, Kouhei SEO, Takashi SHIMOKAWA, Ruiko MIURA, Tatsuya IZDEBSKI, Minako GOTO, Ayumi OKUYAMA, Kiyotake ICHIZUKA, Masaaki NAGATSUKA (Obstetrics and Gynecology, SHOWA University Northern Yokohama Hospital)

Yu YAMAZAKI, Yoko ONISHI, Yoshihiro YOSHIMURA, Kyoko HATTORI, Saeko NAKAGANE, Hitoshi ISOHATA, Yuji KANAI, Daigo OCHIAI (Center for Perinatal Care Child Health and Development, Kitasato University Hospital)