Brain Stimul
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Randomized clinical trials (RCT) demonstrated that auricular acupuncture (AA) is effective in treatment of acute and chronic pain, although the mechanisms behind AA are not elucidated. ⋯ Considering the clinical data relating to the anatomy of neural pathways and experimental findings of the mechanisms of transcutaneous auricular vagal nerve stimulation, the analgesic effects of AA may be explained by stimulation of ABVN.