has tobacco use increased Control Tobacco Use By Youth Is
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Image: Eva Spure/Getty Images About the Author Julie Corliss, Executive Editor, Harvard Heart Letter About the Reviewer Christopher P

They depend on the lab and the methods of testing

It is important to note, though, that most of the health risks linked to smoking cigarettes come from chemicals other than nicotine

Informed electronic consent was provided to all participants prior to their participation in the survey

The measurement of nicotine dependence The Fagerstrom Test for Nicotine Dependence is a 6-item scale that measures physical dependence on nicotine 31

The study found education level (AOR=0.83
