About Hayashi, Masako
About Department of Obstetrics and Gynecology, Nippon Medical School
About Nakai, Akihito
About Department of Obstetrics and Gynecology, Nippon Medical School
About Satoh, Shoji
About Maternal and Perinatal Care Center, Oita Prefectural Hospital
About Matsuda, Yoshio
About Department of Obstetrics and Gynecology, International University of Health and Welfare
About International Journal of Medical Sciences