1 Department of Gynecology and Obstetrics, Kyoto University Graduate School of Medicine, Kyoto, Japan.
2 Department of Pharmacoepidemiology, Graduate School of Medicine and Public Health, Kyoto University, Yoshida-Konoe-Cho, Sakyo-Ku, Kyoto, 606-8501, Japan.
3 Department of Pharmacoepidemiology, Graduate School of Medicine and Public Health, Kyoto University, Yoshida-Konoe-Cho, Sakyo-Ku, Kyoto, 606-8501, Japan. kawakami.koji.4e@kyoto-u.ac.jp.