1. Department of Urology, The First Affiliated Hospital of Nanchang University, Nanchang, Jiangxi 330006, P.R. China
2. Department of Gynaecology and Obstetrics, The People's Hospital of Jiangxi Province, Nanchang, Jiangxi 330006, P.R. China
3. Department of Emergency, The Second Affiliated Hospital of Nanchang University, Nanchang, Jiangxi 330006, P.R. China
4. Department of Urology, The People's Hospital of Jiangxi Province, Nanchang, Jiangxi 330006, P.R. China