Fig. 5From: Comparison of the placebo effect between different non-penetrating acupuncture devices and real acupuncture in healthy subjects: a randomized clinical trialPresence of discomfort at the time of puncture at points ST25 and BL52. Values obtained from a questionnaire applied in the revaluation phase in all study groups. Values were presented as absolute frequency. Chi-Square Test (p = 0.5)Back to article page