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Mean rating of Cocaine Craving Total from the Cocaine Craving Questionnaire following administration of alcohol (0.00, 0.325, 0.65 g/kg). Symbols represent the mean of twenty (20) participants. Filled symbols indicate a significant difference from placebo (0.00 g/kg) at that time point. An asterisk indicates a significant difference between 0.65 g/kg and the corresponding 0.325 g/kg alcohol dose. Error bars indicate one standard error of the mean (SEM).
