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. Author manuscript; available in PMC: 2016 Jun 1.
Published in final edited form as: Psychopharmacology (Berl). 2014 Dec 30;232(12):2169–2179. doi: 10.1007/s00213-014-3845-2

Fig. 5.

Fig. 5

Mean (± SEM) percent change in daily mg/kg methamphetamine consumption from not pre-exposed, no-shift controls on day 1 (a), days 1-7 (b), and days 8-14 (c) of two-bottle choice testing. Not pre-exposed, no-shift control level is set at 0. * p < 0.05 in (b) indicates a significant difference from not pre-exposed no-shift and not pre-exposed shift groups. * p < 0.05, ** p < 0.01, *** p < 0.001. n = 8 animals/group.