1. Decrease in smoking prevalence—Minnesota, 1999–2010;MMWR Morb Mortal Wkly Rep,2011
2. Summary health statistics for U.S. adults: National Health Interview Survey, 2006;Pleis;Vital Health Stat 10,2007
3. Behavioral Risk Factor Surveillance System survey data,2008
4. Vital signs: current cigarette smoking among adults aged >/=18 years—U.S., 2005−2010;MMWR Morb Mortal Wkly Rep,2011
5. Tobacco use among African-Americans in Minnesota: a survey and conversations with African-American communities,2009