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Effect of pulsed radiofrequency (PRF) on the thermal withdrawal latency after sciatic nerve ligation *: Comparison between Group D and Group A (***: P<0.001; **: P<0.01); #: Comparison between Group C and Group A (###: P<0.001); △: Comparison between Group C and Group D (△△△: P<0.001; △△: P<0.01). Data are expressed as the mean ± SEM.
