1. Department of Urology, The First People's Hospital of Jing Zhou, The First Affiliated Hospital of Yangtze University, Jingzhou, Hubei 434000, P.R. China
2. Department of Training Injury Prevention and Treatment, Wuhan Armed Police Special Service Rehabilitation Center, Wuhan, Hubei 430074, P.R. China
3. Department of Urology, Renmin Hospital of Wuhan University, Wuhan, Hubei 430060, P.R. China