A Comprehensive Analysis on the Association between Tobacco-Free Betel Quid and Risk of Head and Neck Cancer in Taiwanese Men.

PLoS One · 2016 · PMC5079549 · PMID 27780233

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a positive trendno p-value reported

When analyzed in 200,000-minute categories for the total time of BQ chewing, there was a positive trend in the association between the total time of BQ chewing and HNC risk ( Table 2 ).

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