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. Author manuscript; available in PMC: 2008 Apr 30.
Published in final edited form as: Eur J Pharmacol. 2007 Feb 1;561(1-3):91–104. doi: 10.1016/j.ejphar.2007.01.046

Fig. 2.

Fig. 2

This figure shows the mean dipper entry rates (±1 S.E.M.) of nicotine generalization for each group. The number of rats per group for generalization was 9, 9, and 8 for the 0.1, 0.2, and 0.4 mg/kg groups, respectively. Significant differences and ED50s are reported in the text.