1. Department of Urology, Beijing Hospital, National Center of Gerontology, Institute of Geriatric Medicine, Chinese Academy of Medical Sciences & Peking Union Medical College, Beijing 100730, China
2. Graduate School of Peking Union Medical College, Beijing 100730, China
3. Department of Urology, Qilu Hospital, Shandong University, Jinan, Shandong 250013, China
4. Department of Urology, SUN YAT-SEN Memorial Hospital, Guangzhou, Guangdong 510235, China
5. Department of Urology, The First Affiliated Hospital of Zhengzhou University, Zhengzhou, Henan 450003, China
6. Department of Urology, Tongji Hospital, Tongji Medical College of Huazhong University of Science and Technology, Wuhan, Hubei 430030, China
7. Department of Urology, China Rehabilitation Research Center, Beijing 100068, China
8. Department of Urology, West China Hospital, Chengdu, Sichuan 610041, China
9. Department of Urology, The Second Affiliated Hospital of Nanjing Medical University, Nanjing, Jiangsu 210011, China
10. Department of Urology, General Hospital of Southern Theatre Command, Guangzhou, Guangdong 510010, China
11. Department of Urology, General Hospital of Central Theatre Command, Wuhan, Hubei 430071, China
12. Department of Urology, China-Japan Friendship Hospital, Beijing 100029, China
13. Department of Urology, Beijing Chao-Yang Hospital, Beijing 100027, China
14. Department of Urology, Peking University Third Hospital, Beijing 100191, China