1. US Department of Health and Human Services. The health consequences of involuntary smoking: a report of the surgeon general. Rockville (MD): U.S. Department of Health and Human Services, Public Health Service, Centers for Disease Control, Center for Health Promotion and Education, Office on Smoking and Health, 1986.
2. U.S. Department of Health and Human Services. The health consequences of involuntary exposure to tobacco smoke: a report of the surgeon general. Atlanta, GA: U.S. Department of Health and Human Services, Centers for Disease Control and Prevention, Coordinating Center for Health Promotion, National Center for Chronic Disease Prevention and Health Promotion, Office on Smoking and Health, 2006.
3. International Agency for Research on Cancer (IARC). IARC handbooks of cancer prevention, tobacco control, vol. 13: evaluating the effectiveness of smoke-free policies. Lyon, France: WHO, 2009.
4. Secondhand smoke and smoking restrictions in casinos: a review of the evidence
5. Smoke-free law did not affect revenue from gaming in Delaware;Mandel;Tob Control,2004