“DIAGNOSTIC ACCURACY OF PROSTATE-SPECIFIC ANTIGEN DENSITY, FREE-TO-TOTAL PSA RATIO, AND DIGITAL RECTAL EXAMINATION IN DETECTING PROSTATE CANCER AMONG MEN WITH SERUM PSA LEVELS IN THE GRAY ZONE (4–10 NG/ML): A PROSPECTIVE OBSERVATIONAL STUDY”, FMHR, vol. 4, no. 3, pp. 2473–2482, Mar. 2026, Accessed: Nov. 08, 2026. [Online]. Available: https://fmhr.net/index.php/fmhr/article/view/3452