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ROC of (F/T)/PSAD, PSAD, F/T, TPSA, FPSA, and PV for prostate cancer diagnosis. ROC – receiver operating characteristic curves; (F/T) – free-to-total PSA; PSAD – prostate-specific antigen density; TPSA – serum-total PSA; FPSA – serum-free PSA; PV – prostate volume.
