1. Department of Urology and Central Laboratory, BenQ Medical Center, Nanjing Medical University, Nanjing, Jiangsu�210019, P.R.�China
2. Department of Cancer Research, Southeast University, Nanjing, Jiangsu�210009, P.R. China
3. Department of Urology, Taizhou People's Hospital, Taizhou, Jiangsu�225300, P.R. China
4. Department of Cancer Research, The First Clinical Medical College, Nanjing Medical University, Nanjing, Jiangsu�211166, P.R. China
5. Central Laboratory, BenQ Medical Center, Nanjing Medical University, Nanjing, Jiangsu�210019, P.R. China
6. Department of Urology, Nanjing First Hospital, Nanjing Medical University, Nanjing, Jiangsu�210006, P.R.�China