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Effects of propranolol on stress-induced enhancement of retrieval of heroin-related words. (a) Study procedure in experiment 2. (b) Effects of propranolol on stress-induced enhancement of retrieval of heroin-related words. (c) Effects of stress and study drug on salivary cortisol concentrations. Data are represented as mean±SEM. Each list contained 10 words. *P<0.01, **P<0.05 compared with control condition (post hoc t-tests). For additional statistical analyses, see Results.
