1 U.S. Department of Health and Human Services, E-Cigarette Use Among Youth and Young Adults. A Report of the Surgeon General. 2016, U. S. Department of Health and Human Services, Centers for Disease Control and Prevention, National Center for Chronic Disease Prevention and Health Promotion, Office on Smoking and Health: Atlanta, GA.
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3 Al-Delaimy, W. K., Myers, M. G., Leas, E. C., Strong, D. R., & Hofstetter, C. R. (2015). E-cigarette use in the past and quitting behavior in the future: a population-based study. American journal of public health, 105(6), 1213–1219. doi:10.2105/AJPH.2014.302482