1. Department of Pathology, Laboratory of Clinical and Experimental Pathology, Xuzhou Medical University, Xuzhou, Jiangsu 221004, P.R. China
2. Department of Nuclear Medicine, Affiliated Hospital of Xuzhou Medical University, Xuzhou, Jiangsu 221000, P.R. China
3. Department of Urology, Xuzhou Central Hospital, Xuzhou, Jiangsu 221009, P.R. China