1. Fiore MC, Jaen CR, Baker TB, Bailley WC, Benowitz NL, Curry SJ, et al. Treating tobacco use and dependence. Clinical Practice Guideline. Rockville: U.S. Department of Health and Human Services. Public Health Service. 2008.
http://www.ahrq.gov/professionals/clinicians-providers/guidelines-recommendations/tobacco/clinicians/update/index.html
. Accessed 6 Nov 2014.
2. US Department of Commerce, C. B. 2006. National Cancer Institute and Centers for Disease Control and Prevention Co-sponsored Tobacco Use Special Cessation Supplement to the Current Population Survey 2003.
http://cancercontrol.cancer.gov/brp/tcrb/tus-cps/
. Accessed 15 Feb 2015.
3. Taylor T, Lader D, Bryant A, Keyse L, Joloza MT. Smoking-related behaviour and attitudes. London: Office for National Statistics; 2005.
http://www.ons.gov.uk/ons/rel/lifestyles/smoking-related-behaviour-and-attitudes/2005/index.html
. Accessed 7 May 2015.
4. Zhu SH, Anderson CM, Johnson CE, Tedeschi G, Roeseler A. A centralised telephone service for tobacco cessation: the California experience. Tob Control. 2000;9(Suppl 2):II48–55.
https://doi.org/10.1136/tc.9.suppl_2.ii48
.
5. Stead LF, Perera R, Lancaster T. A systematic review of interventions for smokers who contact quitlines. Tob Control. 2007;16(Suppl 1):i3–8.
https://doi.org/10.1136/tc.2006.019737
.