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. 2012 Apr 19;15(1):121–129. doi: 10.1093/ntr/nts098

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© The Author 2012. Published by Oxford University Press on behalf of the Society for Research on Nicotine and Tobacco. All rights reserved. For permissions, please e-mail: journals.permissions@oup.com

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Figure 1. — Effects of 5-hr exposure to 42 mg transdermal nicotine (NIC) or placebo patches (PLA) and very low nicotine content cigarettes (VLNC Cigs) or no cigarettes (No Cigs) on CO boost, urge to smoke, nicotine withdrawal symptoms and habit withdrawal symptoms in smokers with schizophrenia (SS; solid bars) and control smokers without psychiatric illness (CS; open bars). Bars represent M ± SEM. Significant main effects of sensorimotor replacement are indicated with asterisks (**p < .01; *** p < .001), significant main effects of nicotine replacement are indicated with plus signs (++ p < .01), and significant main effects of group are indicated with carets (^ p < .05; ^^^ p < .001).