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. Author manuscript; available in PMC: 2015 Feb 1.
Published in final edited form as: Neuropharmacology. 2013 Oct 28;77:10.1016/j.neuropharm.2013.10.010. doi: 10.1016/j.neuropharm.2013.10.010

Figure 2.

Figure 2

Cocaine and YQA14 self-administration. Intravenous administration of cocaine, but not YQA14, induced self-administration in drug naïve rats (A). YQA14 substitution for cocaine failed to maintain drug self-administration behavior in rats previously self-administering cocaine. ***p<0.001 compared to vehicle control group.