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. 2009 Jul 21;101(3):511–517. doi: 10.1038/sj.bjc.6605165

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Copyright © 2009 Cancer Research UK

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Age-dependent shift in LR vs pHR+HR frequency (% of all HPV infections). LR and pHR+HR P(age²)<0.001 (logistic regression). LR=low-risk HPV, pHR=probable high-risk HPV, and HR=high-risk HPV.