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Time effect curve of intrathecal injection group. Vitamin E was administered 20 minutes before formalin injection. Each point showed the mean ± SE and significant dose-dependent decreases in flinches in the late phase (10-60 min). *P < 0.05, vitamin E 3 mg/kg compared with the control group. †P < 0.05, vitamin E 10 mg/kg compared with the control group. ‡P < 0.05, vitamin E 30 mg/kg compared with the control group.
