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Profile of Mood States (POMS) cluster scores by Group and Drug (LS Means): a Fatigue and b Vigor; PLC placebo; NIC nicotine (7 mg); MEC mecamylamine (20 mg); CTRL control group; HI high impulsive group; ** p<.01 different from PLC of same group, * p<.05 different from PLC of same group, error bars are standard error around the mean.
