Neeraj Kumar Singh, Vatsala Kishore, and Dhananjay S Kotasthane. “Evaluation of Spectrum of Prostatic Biopsies Using the Revised Gleason Grading System and Prostate Specific Antigen Assay”. International Journal of Health and Clinical Research, vol. 5, no. 1, Jan. 2022, pp. 461-5, https://ijhcr.com/index.php/ijhcr/article/view/4539.