Source:"The Health Consequences of Smoking—50 Years of Progress. A Report of the Surgeon General." 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. Smoking-Attributable Morbidity, Mortality, and Economic Costs, 2014. Report.
Source:Weinberger, Andrea H., et al. “Cigarette Smoking Is Associated With Increased Risk of Substance Use Disorder Relapse: A Nationally Representative, Prospective Longitudinal Investigation.” The Journal of Clinical Psychiatry, Physicians Postgraduate Press, Inc., 22 Feb. 2017.
Source:"Smoking and Tobacco Control." U.S. Department of Health and Human Services, Public Health Service, National Institutes of Health, National Cancer Institute. Risks Associated with Smoking Cigarettes with Low Machine-Measured Yields of Tar and Nicotine, 19 Nov. 2001. 56, 176, 251.
Source:"In the Fifteenth Judicial Circuit Court in and for Palm Beach County, Florida Case No. CL 95-1466 AH The State of Florida, et al., Plaintiff, Vs. The American Tobacco Company, et al., Defendants. Deposition of Geoffrey C. Bible Taken at the Instance of Plaintiffs." Truth Tobacco Industry Documents. 21 Aug. 1997. Deposition.