1. US Department of Health and Human Services. The health consequences of involuntary exposure to tobacco smoke: a report of the Surgeon General. Atlanta, GA: US Department of Health and Human Services, CDC; 2006. http://www.surgeongeneral.gov/library/secondhandsmoke/report
2. 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
3. State smoke-free laws for worksites, restaurants, and bars—United States, 2000–2010.;CDC;MMWR Morb Mortal Wkly Rep,2010
4. State preemption of local tobacco control policies restricting smoking, advertising, and youth access—United States, 2000–2010.;CDC;MMWR Morb Mortal Wkly Rep,2011
5. Secondhand smoke and smoking restrictions in casinos: a review of the evidence.;Babb;Tob Control,2015