1. US Department of Health and Human Services. The health consequences of smoking—50 years of progress. Atlanta, GA: US Department of Health and Human Services, CDC; 2014. http://www.cdc.gov/tobacco/data_statistics/sgr/50th-anniversary/index.htm
2. US Department of Health and Human Services. Preventing tobacco use among youth and young adults. Atlanta, GA: US Department of Health and Human Services, CDC; 2012. http://www.cdc.gov/tobacco/data_statistics/sgr/2012/index.htm
3. US Department of Health and Human Services. The health consequences of smoking: nicotine addiction: a report of the surgeon general. Rockville, MD: US Department of Health and Human Services, CDC; 1988. http://profiles.nlm.nih.gov/NN/B/B/Z/D/
4. CDC. Key outcome indicators for evaluating comprehensive tobacco control programs. Atlanta, GA: US Department of Health and Human Services CDC; 2005. http://www.cdc.gov/tobacco/tobacco_control_programs/surveillance_evaluation/key_outcome/
5. Family Smoking Prevention and Tobacco Control Act, Pub. L. No. 111–31, H.R. 1256 (2009). https://www.gpo.gov/fdsys/pkg/PLAW-111publ31/html/PLAW-111publ31.htm