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Figure 1 | Journal of Circadian Rhythms

Figure 1

From: Altered expression of circadian clock gene, mPer1, in mouse brain and kidney under morphine dependence and withdrawal

Figure 1

The conditioned place preference (CPP) results. Data of CPP in mice are given as mean (± S.E.M.) under the different conditions. a: CPP in the Con and MD groups (Con group after the 8th day of saline injection, MD group after the 8th day of morphine injection, * p < 0.05 tested by Student's t-test) b: CPP in the MW group (MW group after the 8th day morphine injection and after 5th day of morphine withdrawal).

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