Abdollahi, Alireza, et al. “Inter/Intra-Observer/Reproducibility/of/Gleason/Scoring/in/Prostate/Adenocarcinoma/in/Iranian/Pathologists”. Urology Journal, vol. 9, no. 2, May 2012, pp. 486-90, doi:10.22037/uj.v9i2.1476.