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. Author manuscript; available in PMC: 2008 Jan 5.
Published in final edited form as: Neuroscience. 2006 Oct 19;144(1):247–262. doi: 10.1016/j.neuroscience.2006.08.078

Figure 5.

Figure 5

Acute morphine produces analgesia to thermal stimuli in both infant and young rats. Data is average ± SEM (n=5−6/group). α p<0.05 compared to time matched saline injected.