SASAKI Takamichi, KURASAKI Akiko, HASEGAWA Zyunichi, MIURA Ayako, HONMA Chika, MIMA Yasuyuki, NAKAMURA Takayoshii, IGARASHI Suguru, KONDOU Haruhiro, SUZUKI Nao (Department of Obstetrics & Gynecology, St. Marianna University School of Medicine)

KUBOTA Mami¹, SAKUMA Jyunya¹, TAKANO Mayumi¹, NAGASAKI Sumito¹, OJI Ayako¹, HAYATA Eijiro¹, MAEMURA Toshimitsu¹, NAKATA Masahiko¹, YODA Hitoshi², MORITA Mineto¹ (1.Obstetrics and Gynecology, Toho Univercity Omori Hospital, 2.Neonatology, Toho Univercity Omori Hospital)

FURUYA Natsumi, HARADA Satoshi, HOMMA Chika, MIURA Ayako, KURASAKI Akiko, IGARASHI Suguru, KONDO Haruhiro, HASEGAWA Junichi, SUZUKI Nao (Department of Obstetrics and Gynecology, St. Marianna University School of Medicine)

YAMAGUCHI Tetsu, TAKANO Natsuko, TAMARU Shunnsuke, HORIKOSHI Tsuguhiro, KAMEI Yoshimasa (Gynecology, Saitama Medical University Hospital)

NISHINO Chihiro¹, KAWAMURA Hiroshi¹, MATSUO Seiya², YASHIRO Kenji², TAMAMURA Chiyo¹, OKUNO Takashi², TAKAHASHI Jin¹, ORISAKA Makoto¹, KUROKAWA Tetsuji¹, YOSHIDA Yoshio¹ (1.Obstetrics and Gynecology, University of Fukui Hospital, 2.Pediatrics, University of Fukui Hospital)

IKEDA Shoko¹, KAWATAKI Motoyoshi², SASAKI Megumi¹, MOCHIZUKI Akihiko¹, MOCHIZUKI Kyoko³, SHINKAI Masato³, ISHIKAWA Hiroshi¹ (1.Department of Obstetrics and Gynecology, Kanagawa Children's Medical Center, 2.Department of Neonatology, Kanagawa Children's Medical Center, 3.Department of Pediatric Surgery, Kanagawa Children's Medical Center)

IDE Sanae¹, IKEYA Miki², AKUTAGAWA Kana¹, AMAGATA Syuusuke³, NAKAHARA Saori⁴, NAKAO Atsushi³, YODA Hitoshi⁵, MIYAUCHI Akito¹ (1.OB/GY, Japanese Red Cross Medical Center, 2.OB/GY, Yokohama City Minato Red Cross Hospital, 3.Neonatology, Japanese Red Cross Medical Center, 4.Pediatric Surgery, Japanese Red Cross Medical Center, 5.Neonatology, Toho University Omori Medical Center)

UEDA Eriko¹, IDE Sanae¹, AKUTAGAWA Kana¹, IKEYA Miki², AMAKATA Syusuke³, NAKAHARA Saori⁴, NAKAO Atsushi³, YODA Hitoshi⁵, MIYAUCHI Akito¹ (1.Japanese Red Cross Medical Center, 2.Yokohama City Minato Red Cross Hospital, 3.Japanese Red Cross Medical Center, 4.Japanese Red Cross Medical Center, 5.Toho University Medical Center)