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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. 1.

Fig. 1

Experimental time-line showing % alcohol available as a function of Time (Experimental Days). Upper Panel: For both of the 10% alcohol groups (C57BL/6NCRL and DBA/2J) the duration of the experiment was 19 days, and included one 4-day abstinence period (Days 13–16). Lower Panel: For both of the 3% alcohol groups (C57BL/6NCRL and DBA/2J) the duration of the experiment was 26 days, and included two 4-day abstinence periods (Days 13–16 and Days 20–23). A subcutaneous injection of either Naltrexone (10.0 mg/kg) or 0.9% Saline was given one-hour prior to the first post-abstinence drinking session (Day 24) following the second 4-day abstinence period.