Department of Obstetrics and Gynecology, Osaka Rosai Hospital, Sakai, Osaka, Japan (Drs Kuratsune, Tanaka, and Shiki); Department of Obstetrics and Gynecology, University of Occupational and Environmental Health, Kitakyushu, Fukuoka, Japan (Dr Kuratsune)
Yusuke Tanaka, MD, PhD
Department of Obstetrics and Gynecology, Osaka Rosai Hospital, Sakai, Osaka, Japan (Drs Kuratsune, Tanaka, and Shiki); Corresponding author: Yusuke Tanaka, MD, PhD.
Yasuhiko Shiki, MD
Department of Obstetrics and Gynecology, Osaka Rosai Hospital, Sakai, Osaka, Japan (Drs Kuratsune, Tanaka, and Shiki)