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:Stella Juhyun Lee, PhD1; Vaughan W. Rees, PhD2; Noam Yossefy, MPH2; et al. (2020, June 1). Youth and Young Adult Use of Pod-Based Electronic Cigarettes From 2015 to 2019. Retrieved from https://jamanetwork.com/journals/jamapediatrics/article-abstract/2766303.
Source:Federal Trade Commission. Smokeless Tobacco Report for 2017. Retrieved from https://www.ftc.gov/reports/federal-trade-commission-cigarette-report-2017-federal-trade-commission-smokeless-tobacco. Published February, 2019.