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Combined electroacupuncture and auricular acupuncture for primary insomnia: a randomised controlled trial of dose-response effect.

Introduction Acupuncture possesses a mild hypnotic effect.1-3 Auricular acupuncture is a form of acupuncture in which seeds, needles, or other materials are applied to the acupoints on the outer ears for a few days to 2 weeks. Acupuncture and auricular acupuncture are based on distinct Chinese medicine theories. Combination of acupuncture and auricular acupuncture may be more effective than either alone. We hypothesised that combined acupuncture and auricular acupuncture was more efficacious than acupuncture alone for treating insomnia.