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. Author manuscript; available in PMC: 2012 Apr 1.
Published in final edited form as: Pediatr Res. 2011 Apr;69(4):285–292. doi: 10.1203/PDR.0b013e31820bd165

Figure 1. Stress morphine comparison groups.

Figure 1

These comparisons allow us to answer the following questions: 1) What is the effect of mild stress? Answer: MSS-CC; 2) Is there a dose-dependent effect of stress? Answer: SSS-MSS; 3) How does severe stress affect morphine-treated animals? Answer: SSM-MSM; 4) How does morphine affect mildly stressed animals? Answer: MSM-MSS; 5) What does morphine do to severely stressed animals? Answer: SSM-SSS; 6) Does morphine act different in severely stressed animals? Answer: Stress X Morphine interaction