[1] Chang Gung Univ, Chang Gung Mem Hosp, Dept Obstet & Gynecol, Div Urogynecol, Taoyuan, Taiwan
[2] Serdang Hosp, Dept Obstet & Gynecol, Selangor, Malaysia
[3] Chang Gung Mem Hosp, Dept Obstet & Gynecol, Div Urogynecol, Linkou branch, Taoyuan, Taiwan
[4] Kuching Gen Hosp, Dept Obstet & Gynecol, Sarawak, Malaysia
[5] Chang Gung Mem Hosp, Dept Obstet & Gynecol, Div Urogynecol, Linkou branch, Kwei Shan 333, Tao Yuan Hsien, Taiwan