| Authors: |
Tokunaga H; Division of Obstetrics and Gynecology, Faculty of Medicine, Tohoku Medical and Pharmaceutical University, Miyagi, Japan. tokunaga.hideki@tohoku-mpu.ac.jp., Shibuya Y; Department of Gynecology, Tohoku University Hospital, Miyagi, Japan., Yamagami W; Department of Obstetrics and Gynecology, Keio University School of Medicine, Tokyo, Japan., Takahashi F; Department of Information Science, Iwate Medical University, Iwate, Japan., Yamamoto E; Department of Healthcare Administration, Nagoya University Graduate School of Medicine, Nagoya, Japan., Yokoyama Y; Department of Obstetrics and Gynecology, Hirosaki University Graduate School of Medicine, Aomori, Japan., Yoshino K; Department of Obstetrics and Gynecology, University of Occupational and Environmental Health, Fukuoka, Japan., Kawana K; Department of Obstetrics and Gynecology, Nihon University School of Medicine, Tokyo, Japan., Nagase S; Department of Obstetrics and Gynecology, Yamagata University Faculty of Medicine, Yamagata, Japan. |
