Source:"The Health Consequences of Smoking—50 Years of Progress. Surgeon General's Report." 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. Cancer, 2014: 9. Report.
Source:West Virginia Department of Health & Human Resources. Addressing Tobacco Use and Its Associated Health Conditions in West Virginia. Charleston, WV: West Virginia Department of Health & Human Resources, Bureau for Public Health, West Virginia Division for Tobacco Prevention, Office of Community Health Services and Health Promotion, 2016.
Source:Johnston, L. D., O’Malley, P. M., Miech, R. A., Bachman, J. G., & Schulenberg, J. E. (2015). Monitoring the Future national results on drug use: 1975-2015: Overview, Key Findings on Adolescent Drug Use. Ann Arbor: Institute for Social Research, The University of Michigan.