1. U.S. Department of Health and Human Services . The Health Consequences of Smoking: 50 Years of Progress. A Report of the Surgeon General. Atlanta, GA: U.S. Department of Health and Human Services, Centers for Disease Control and Prevention and Health Promotion, Office on Smoking and Health, 2014. http://www.surgeongeneral.gov/library/reports/50-years-of-progress/full-report (12 April 2016, date last accessed).
2. Centers for Disease Control and Prevention. Health Effects of Cigarette Smoking. http://www.cdc.gov/tobacco/data_statistics/fact_sheets/health_effects/effects_cig_smoking (12 April 2016, date last accessed).
3. The State of US Health, 1990-2010
4. Quality-adjusted life expectancy (QALE) loss due to smoking in the United States
5. The Relative Health Burden of Selected Social and Behavioral Risk Factors in the United States: Implications for Policy