1. Department of Urology Beijing HospitalNational Center of Gerontology Beijing China
2. Graduate School of Chinese Academy of Medical Science and Peking Union Medical College Beijing China
3. Department of Urology Xiangya HospitalCentral South University Changsha China
4. Department of Ophthalmology The Affiliated XiangTan Hospital XiangYa Medical College CSU (XiangTan Central Hospital) XiangTan Hunan China
5. Department of Urology Chenzhou No.1 People’s Hospital ChengZhou Hunan China
6. Department of Pathology Xiangya HospitalCentral South University Changsha Hunan China