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(A) Mean (± SEM) somatic signs in groups on the 5th day of acute dependence precipitated withdrawal testing. (B) Mean (± SEM) somatic signs in the MOR and SAL condition 26 hours after injection during acute dependence spontaneous withdrawal testing. *** Significant effect of group, p < 0.001. * Different from SAL + SAL group or SAL condition, p < 0.05.
