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. Author manuscript; available in PMC: 2010 Oct 9.
Published in final edited form as: Nicotine Tob Res. 2008 Jun;10(6):1047–1056. doi: 10.1080/14622200802097373

Figure 2.

Figure 2

Effects of 5-hr abstinence and 0, 21 and 42 mg transdermal nicotine (NRT) on (A) unelicited smoking urge levels, (B) nicotine withdrawal symptoms and (C) CO boost in smokers with schizophrenia (n = 21; solid symbols) and equally-heavy smokers without psychiatric illness (n = 21; open symbols). Data points represent M ± SEM. Plus signs indicate significant differences between the Non-abstinent + 0 mg NRT and Abstinent + 0 mg NRT conditions; carets indicate significant effects of NRT; asterisks indicate significant differences between groups (* p < .05; ** p < .01; *** p < .001).