1. Department of Radiology, Wuchuan People’s Hospital, Wuchuan, China
2. Department of Radiology, Xiaolan Hospital Affiliated to Southern Medical University, Zhongshan, China
3. Department of Radiology, Second Affiliated Hospital of Shantou University Medical College, Shantou, China
4. Department of Urology, Wuchuan People’s Hospital, Wuchuan, China