Wang, Xiaochuan, Yu Zhang, Zhengguo Ji, Peiqian Yang, and Ye Tian. 2020. “Men With High Prostate Specific Antigen Have Higher Risk of Gleason Upgrading After Prostatectomy: A Systematic Review and Meta-Analysis”. Urology Journal 18 (05), 477-84. https://doi.org/10.22037/uj.v16i7.6127.