1. Department of Urology, The First People's Hospital of Pinghu, Pinghu, Zhejiang 314200, P.R. China
2. Department of Urology, The First People's Hospital of Pinghu, Pinghu, Zhejiang 314200, P.R. China
3. Department of Pathology, The First People's Hospital of Pinghu, Pinghu, Zhejiang 314200, P.R. China