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. Author manuscript; available in PMC: 2014 Jul 1.
Published in final edited form as: Prog Neuropsychopharmacol Biol Psychiatry. 2013 Mar 13;44:240–247. doi: 10.1016/j.pnpbp.2013.03.002

Fig. 2. Pre-abstinence alcohol intake (g/kg).

Fig. 2

Mean daily g/kg alcohol intake (grams of alcohol consumed per kilogram of bodyweight) during the last 5 sessions preceding the first abstinence period for the C57BL/6NCRL mice trained with the 3% alcohol concentration (n=24) and the C57BL/6NCRL mice trained with the 10% alcohol concentration (n=24) and for the DBA/2J mice trained with the 3% alcohol concentration (n=24) and the DBA/2J mice trained with the 10% alcohol concentration (n=24). The vertical bars represent the standard error of the mean (SEM). The single asterisk (*) indicates that the groups differed at the 0.05 level of significance. The double asterisk (**) indicates that the groups differed at the 0.01 level of significance.