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. Author manuscript; available in PMC: 2016 Feb 5.
Published in final edited form as: Pharmacol Biochem Behav. 2012 Feb 23;101(4):544–552. doi: 10.1016/j.pbb.2012.02.015

Table 1.

Experimental procedures. Morphine pellet containing 100mg morphine sulfate.

Exp Day 1–6 7 7–9 10 10–12
Control Group Baseline recording Placebo pellet implantation Recording Placebo pellet removal Recording
Experimental Group Baseline Recording Morphine pellet implantation Recording Morphine pellet removal Recording