1. Department of Urology, Kidney and Urology Center, Pelvic Floor Disorders Center,The Seventh Affiliated Hospital, Sun Yat-sen University, Shenzhen, China
2. Department of Urology, The Sun Yat-sen Memorial Hospital, Sun Yat-sen University, Guangzhou, China
3. Department of Radiology, The Third Affiliated Hospital, Sun Yat-sen University, Guangzhou, China