non tobacco cigarettes Understanding the Benefits of Tobacco-Free Cigarettes: A Safer Alternative NIRDOSH Herbal No Nicotine &

One stronger type of topic sentence contains a keyword that sets up an expectation as to the content and organization of the rest of the paragraph or paragraphs

Also, the database highlights research gaps by providing product-wise list of identified chemical compounds

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PMC 6022610

95% CI: 1.194.27), e-cigarette-only users (AOR=3.16

Backward selection following the Akaike information criterion (AIC) was used for the model