> Figure 1. The Kaiser Permanente study. Although free PSA was measured after prostate biopsy, the observers were blinded to the biopsy results. In clinical practice, the order of testing would be reversed.

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 1. The Kaiser Permanente study. Although free PSA was measured after prostate biopsy, the observers were blinded to the biopsy results. In clinical practice, the order of testing would be reversed.

Figure 1. The Kaiser Permanente study. Although free PSA was measured after prostate biopsy, the observers were blinded to the biopsy results. In clinical practice, the order of testing would be reversed.

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