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Walsh, Terri, Lee Warner, Maurizio Macaluso, Ron Frezieres, Margaret Snead, and Brian Wraxall. "Prostate-specific Antigen As a Biomarker of Condom Failure: Comparison of Three Laboratory Assays and Self-reported Condom Use Problems in a Randomized Trial of Female Condom Performance(, )." Contraception 2012.

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