1. Waters, H.R., Stevens, S.S., Alesci, N.L., Samet, J. "The Economic Impact of Secondhand Smoke in Minnesota." Johns Hopkins Bloomberg School of Public Health in collaboration with Blue Cross and Blue Shield of Minnesota, 2007.

2. National Cancer Institute. Risks Associated With Smoking Cigarettes with Low Machine-Measured Yields of Tar and Nicotine. 2001.

3. National Toxicology Program. 11th Report on Carcinogens. 2005.

4. The Health Consequences of Involuntary Exposure to Tobacco Smoke: A Report of the Surgeon General. U.S. Department of Health and Human Services. 2006

5. Hyland A., M. Travers, J. Repace, Seven City Air Monitoring Study (March-April 2004).

6. Cigarette smoking among adults - United States, 2000. MMWR. July 26, 2003;51 (29): 642-645

7. Fichtenberg CM, Glantz SA. Effect of smoke-free workplaces on smoking behavior: systematic review. BMJ. 2002.

8. Smith SS, T Beckley, M Fiore. Health care provider use of guideline-based smoking cessation interventions: results from the 2003 Wisconsin Tobacco Survey. Wis Med J 2005;104(4):28-31.

9. 2006 evaluation by Professional Data Analysts (PDA). Intentions to treat (ITT) rates are 20%. The ITT rate assumes that all those who cannot be reached for the follow-up survey are still smoking.

10. 2007 evaluation by PDA. ITT rates are 23%.

11. 2007 evaluation by PDA. ITT rates are 27%.

12. ClearWay MinnesotaSM. New survey finds 76 percent of Minnesotans support smoke-free law [press release]. 2008.