A Comparison of E-Cigarette Use Patterns and Smoking Cessation Behavior among Vapers by Primary Place of Purchase.

Int J Environ Res Public Health · 2019 · PMC6427541 · PMID 30823400

Europe PMC DOI

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a positive trendno p-value reported

Second, given the association between higher quit rates and vape shops (relative to retail stores), this shift from retail store to vape shops could be viewed as a positive trend.

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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.