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The effects of L5 SNL on mechanical allodynia ((a), (b)) and heat hyperalgesia ((c), (d)) in rats. ∗ P < 0.05 compared with preoperative value. ∗∗ P < 0.01 compared with preoperative value. # P < 0.05 compared with the sham operated rats. ## P < 0.01 compared with the sham operated rats.
