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To our knowledge, verum acupuncture has never been directly compared with sham acupuncture and guideline-based conventional therapy in patients with chronic low back pain.

archives of internal medicine

German Acupuncture Trials (Gerac) For Chronic Low Back Pain&lt;subtitle&gt;Randomized, Multicenter, Blinded, Parallel-Group Trial With 3 Groups&lt;/subtitle&gt;