Prevalence of genital human papillomavirus among rural and urban populations in southern Yunnan province, China.

Braz J Med Biol Res · 2016 · PMC4932820 · PMID 27254662

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a clear trendno p-value reported

In this study, we found a clear trend towards an increasing risk for HPV infection with increasing parity among women from both areas.

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Quoted from the open-access full text in Europe PMC under the licence the publisher applied. The sentence is reproduced exactly as published; the emphasis is ours.