References
Anderson JE, Jorenby DE, Scott WJ, et al. Treating tobacco use and dependence: An evidence-based clinical practice guideline for tobacco cessation. Chest. 2002;121(3:932-941.
Fiore MC, Bailey WC, Cohen SJ, et al. Treating Tobacco Use and Dependence. Clinical Practice Guideline. Rockville, MD: US Department of Health and Human Services. Public Health Service. June 2000.