1. Department of Urology, The Affiliated Hospital of Chengde Medical University, Chengde, Hebei 067000, P.R. China
2. Key Laboratory of Ethnomedicine of Ministry of Education, Center on Translational Neuroscience, School of Pharmacy, Minzu University of China, Beijing 100081, P.R. China
3. Department of Pathology, Liaoning Cancer Hospital and Institute, Shenyang, Liaoning 110042, P.R. China
4. Department of Urology, Liaoning Cancer Hospital and Institute, Shenyang, Liaoning 110042, P.R. China