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. Author manuscript; available in PMC: 2009 Jul 21.
Published in final edited form as: Nat Genet. 2008 Apr 2;40(5):616–622. doi: 10.1038/ng.109

Figure 3.

Figure 3

Effects of SNPs according to smoking behavior in current, former and never smokers adjusting for age, sex and packyears of tobacco smoke exposure. (a–c) The x axis indicates the extent of exposure, starting with never smokers (UK population, panel c only), followed by former smokers who quit 24 or more years ago, former smokers who quit 15–23 years ago, former smokers who quit less than 15 years ago and current smokers. Panel a presents data from the Texas discovery set, panel b presents data from the Texas replication set and panel c presents data from the UK replication set.