> Figure 4. A 2 x 2 table showing the test performance of measuring percent free PSA in which a 25% cutoff is used.

From "Can Percent Free Prostate-Specific Antigen Reduce the Need for Prostate Biopsy?" Effective Clinical Practice, November/December 1999. 2:266-271.

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Figure 4. A 2 x 2 table showing the test performance of measuring percent free PSA in which a 25% cutoff is used.

Figure 4. A 2 x 2 table showing the test performance of measuring percent free PSA in which a 25% cutoff is used.

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