1. Department of Andrology, Xi’an Hospital of Traditional Chinese Medicine,Xi’an, P. R. China
2. School of Integrated Chinese and Western Medicine, Gansu University of Chinese Medicine, Lanzhou, P. R. China
3. Department of Urology, Key Laboratory of Urological Disease of Gansu Province, Clinical Center of Gansu Province for Nephron-Urology, Lanzhou University Second Hospital, Lanzhou, P. R. China
4. Department of Urology, Shantou Central Hospital, Shantou, P. R. China
5. The Second Clinical Medical College, Lanzhou University, Lanzhou, P. R. China
6. Department of Cardiology, Affiliated Hospital of Gansu Medical College, Pingliang, P. R. China
7. Department of Urology and Andrology, Affiliated Hospital of Gansu University of Chinese Medicine, Lanzhou, P. R. China.