Chen, Y., H. Zhong, J.-G. Gao, J.-E. Tang, and R. Wang. “A Systematic Review and Meta-Analysis of Three Gene Variants Association With Risk of Prostate Cancer: An Update”. Urology Journal, vol. 12, no. 3, July 2015, pp. 2138-47, doi:10.22037/uj.v12i3.2800.