1. Department of Education, Taichung Veterans General Hospital, Taichung, Taiwan
2. Division of Obstetrics, Department of Obstetrics and Gynecology, Chi Mei Medical Center, Tainan, Taiwan
3. Division of Urogynecology, Department of Obstetrics and Gynecology, Chi Mei Medical Center, Tainan, Taiwan
4. Department of Post-Baccalaureate Medicine, College of Medicine, National Sun Yat-Sen University, Kaohsiung, Taiwan