Source:"The Health Consequences of Smoking—50 Years of Progress. A Report of the Surgeon General Executive Summary." 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. 2014. Report.
Source:Wellman, Robert J., et al. "The Extent to Which Tobacco Marketing and Tobacco Use in Films Contribute to Children's Use of Tobacco: A Meta-analysis." Archive of Pediatric and Adolescent Medicine. Jan. 2007.