1. Department of Female Pelvic Health Center Showa University Northern Yokohama Hospital Kanagawa Japan
2. Department of Obstetrics and Gynecology Showa University Northern Yokohama Hospital Kanagawa Japan
3. Department of Urology Showa University Northern Yokohama Hospital Kanagawa Japan
4. Department of Radiology Showa University Northern Yokohama Hospital Kanagawa Japan