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. Author manuscript; available in PMC: 2012 Jul 1.
Published in final edited form as: Addict Biol. 2011 Mar 11;16(3):440–449. doi: 10.1111/j.1369-1600.2010.00309.x

Figure 3.

Figure 3

Nicotine administration increases 20% ethanol operant self-administration. (A.) Nicotine (0.8 mg/kg, s.c.), but not vehicle (saline), administered 15 minutes prior to the session significantly increases ethanol intake. The values are expressed as mean ethanol intake g/kg/60min ± SEM (two-way ANOVA followed by Newman-Keuls post hoc test). * p< 0.05, ** p<0.01, *** p<0.001, n=12 for the nicotine group and n=11 for the vehicle group.