1. Department of Radiology, First Hospital of Jilin University, Changchun, Jilin 130021, P.R. China
2. Department of Pathology, First Hospital of Jilin University, Changchun, Jilin 130021, P.R. China
3. Department of Urology, First Hospital of Jilin University, Changchun, Jilin 130021, P.R. China