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The time-dependent changes in basal paw withdrawal responses in mice to mechanical and cold stimuli after daily chronic unpredictable stress. (A, B) Mechanical allodynia test. (C, D) Cold allodynia test. (A, C) Responses of left hind paws. (B, D) Responses of right hind paws. Results are expressed as mean ± SEM. *P < .05, **P < .01 vs the corresponding time points in the control group (n = 10/group).
