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Effect of continuous smoking reduction and abstinence on blood pressure and heart rate in smokers switching to electronic cigarettes
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According to The data of the 2022 Electronic Cigarette Industry Export Blue Book, the US electronic cigarette market is very large, and its market share is expected to exceed 65% of the total overseas electronic cigarette market in 2022
Pretests were performed for each of the 49 independent variables (84 after dummy-coding categorial variables) using Spearman's correlation for continuous variables (Supplementary Table S2) and Pearson's chi-square ( 2 ) test for categorical variables (Supplementary Tables S3, S4)
Weve been gradually working up from single odors towards more complex mixtures ever since, said McClintock
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