1. Department of Urology, First Affiliated Hospital of Nanchang University, Nanchang, People's Republic of China
2. Department of Urology, China People's Liberation Army General Hospital, Beijing, People's Republic of China
3. Xiangfan and School of Health Sciences, Macao Polytechnic Institute, Macao, People's Republic of China
4. Department of Urology, Military General Hospital of Beijing People's Liberation Army, Beijing, People's Republic of China
5. Xiangfan Central Hospital, Tongji Medical College, Huazhong University of Science and Technology, Macao, People's Republic of China