1. Department of Obstetrics and Gynecology Tottori University Faculty of Medicine Yonago Japan
2. Tsumura Kampo Research Laboratories Kampo Research and Development Division, Tsumura & Co. Tokyo Japan
3. Department of Gynecology Kurashiki Heisei Hospital Kurashiki Japan
4. Advanced Medicine, Innovation and Clinical Research Center Tottori University Hospital Yonago Japan