1. Department of Urology, Sun Yat-Sen Memorial Hospital, Sun Yat-Sen University, Guangzhou, P. R. China
2. Guangdong Provincial Key Laboratory of Malignant Tumor Epigenetics and Gene Regulation, Sun Yat-Sen Memorial Hospital, Sun Yat-Sen University, Guangzhou, Guangdong, P. R. China
3. Guangdong Provincial Clinical Research Center for Urological Diseases, Sun Yat-Sen University, Guangzhou, P. R. China
4. Department of Urology, DUSHU Lake Hospital Affiliated to Soochow University, Suzhou, China
5. Department of Radiotherapy, Sun Yat-Sen Memorial Hospital, Sun Yat-Sen University, Guangzhou, Guangdong, P. R. China
6. Department of urology, Shantou Central Hospital, Shantou, China