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(A) Receiver-operator characteristic (ROC) curve of the predicted probability of detecting cancers of Gleason score ≥ 7 on biopsy by urinary PSA-PhoSL (solid curve) and urinary PSA-AAL (dashed curve). (B) ROC curve of the predicted probability of detecting cancers of Gleason score ≥ 7 on biopsy by the optimum logistic regression model (solid curve), serum PSA (dotted curve), and PSA density (dashed curve).
