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. 2003 Sep 30;89(7):1248–1254. doi: 10.1038/sj.bjc.6601272

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Copyright © 2003 Cancer Research UK

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Age distribution of HPV-16, -18, -31, and -45 seroprevalence^* and DNA-prevalence^** in Guanacaste, Costa Rica women. ^*Population-based HPV-16, -18, -31, and -45 serology prevalence is shown in black lines and includes study virgins. Black dotted lines denote seroprevalence excluding study virgins. ^**HPV DNA prevalence does not include study virgins.