KLK3 and posterior cortical atrophy: Another five miRNA ratios (miR-200/miR-30e, miR-205/miR-30e, miR-31/miR-30e, miR-660/miR-30e, and miR-22/miR-378a) were not associated with PSA level while achieving 100% sensitivity and 100% specificity of PCa detection.