Figure 3From: The antinociceptive effect of electroacupuncture at different depths of acupoints and under the needling surfaceTime course of the changes induced by the sham (EA sham) or real electroacupuncture (EA). Anesthesia was provided during the time indicated by a horizontal dashed arrow. EA was applied for 20 min (solid line) using the needle types numbered as in A. Points are means (± SD) of six rats per group. P < 0.05 compared to sham EA (*), sham EA, EA (I) and EA (V) (+), or any other group (#), using the Bonferroni post hoc test.Back to article page