1. Department of Urology, The Eighth Affiliated Hospital, Sun Yat-sen University, Shenzhen, Guangdong, China
2. The Sixth Clinical College of Guangzhou Medical University, Guangzhou, Guangdong, China
3. Department of Urology, Sun Yat-sen Memorial Hospital, Sun Yat-sen University, Guangzhou, Guangdong, China
4. Guangdong Clinical Research Center for Urological Diseases, Guangzhou, Guangdong, China