1. Clinical Research Institute, The Second Affiliated Hospital, University of South China, Hengyang 421001, China
2. College of Nursing, Hunan Polytechnic of Environment and Biology, Hengyang 421005, China
3. Department of Urology, The Second Affiliated Hospital, University of South China, Hengyang 421001, China
4. Department of Urology, The First People’s Hospital of Yueyang, Yueyang 414000, China