1. Department of Urology, QiLu Hospital of Shandong University, Jinan 250012, Shandong, P.R. China
2. Department of Gynecology, Jinan Central Hospital, Jinan 250012, Shandong, P.R. China
3. Pathology Department, Basic Medical School, Shandong University, Jinan 250012, Shandong, P.R. China
4. Department of Urology, Jinan Central Hospital Affiliated to Shandong First Medical University, Jinan 250012, Shandong, P.R. China