1. Department of Gastroenterology West China Hospital of Sichuan University Chengdu Sichuan P.R. China
2. Department of Urology, The First Affiliated Hospital of Anhui Medical University Hefei P.R. China
3. Institute of Urology Anhui Medical University Hefei P.R. China
4. Anhui Province Key Laboratory of Genitourinary Diseases, Anhui Medical University Hefei P.R. China
5. State Key Laboratory of Natural Medicines, Research Center of Biostatistics and Computational Pharmacy China Pharmaceutical University Nanjing P.R. China