1. Centers for Disease Control and Prevention (CDC), National Center for Chronic Disease Prevention and Health Promotion, Division of Population Health. BRFSS Prevalence & Trends Data. www.cdc.gov/brfss/brfssprevalence/. Updated September 13, 2017. Accessed May 23, 2018.
2. Creating Positive Turbulence: A Tobacco Quit Plan for California;Roeseler,2010
3. Evidence of real-world effectiveness of a telephone quitline for smokers;Zhu;N Engl J Med,2002
4. The Cost of Smoking in California, 2009;Max,2014
5. 21st-century hazards of smoking and benefits of cessation in the United States;Jha;N Engl J Med,2013