People with a common genetic defect that reduces their ability to metabolize nicotine are less likely to become smokers and, if they do smoke, will smoke fewer cigarettes, according to a University of Toronto study published in the June 25 issue of Nature.
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University Of Toronto. "Genetic Defect Protects Against Smoking." ScienceDaily. ScienceDaily, 25 June 1998. <www.sciencedaily.com/releases/1998/06/980625083840.htm>.
University Of Toronto. (1998, June 25). Genetic Defect Protects Against Smoking. ScienceDaily. Retrieved March 10, 2014 from www.sciencedaily.com/releases/1998/06/980625083840.htm
University Of Toronto. "Genetic Defect Protects Against Smoking." ScienceDaily. www.sciencedaily.com/releases/1998/06/980625083840.htm (accessed March 10, 2014).