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Risk of surpassing an age-specific cut-point (A), undergoing a prostate biopsy by PSA quartile (B), or being diagnosed with prostate cancer (C) stratified by baseline PSA quartiles (Q1 0–0.4, Q2 0.5–0.69, Q3 0.7–0.9, Q4 > 1.0 ng/mL). PSA, prostate-specific antigen. (Color version available online.)
