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Comparison of the effects of pretreatment with GNC92H2 (30 mg/kg) or control IgG (30 mg/kg) on cocaine self-administration between GNC-KLH- and KLH-treated animals in a 1-h session. Horizontal line depicts average baseline value. Values represent means ± SEM of 16 animals (n = 8). *, P < 0.018, ANOVA, significant difference from baseline.
