1. The preventable causes of death in the United States: comparative risk assessment of dietary, lifestyle, and metabolic risk factors;Danaei;PLoS Med,2009
2. Cigarette smoking among adults and trends in smoking cessation: United States, 2008;Centers for Disease Control and Prevention;MMWR Morb Mortal Wkly Rep,2009
3. Smoking-attributable mortality, years of potential life lost, and productivity losses: United States, 2000–2004;Centers for Disease Control and Prevention;MMWR Morb Mortal Wkly Rep,2008
4. Treating tobacco use and dependence: 2008 update;Fiore,2008