title: Dry needling of muscle motor points for chronic low-back pain: a randomized clinical trial with long-term follow-up.
mesh_terms: D015670:Acupuncture Therapy / Q000379:methods*; D000328:Adult; D000704:Analysis of Variance; D001416:Back Pain / Q000628:therapy*; D002908:Chronic Disease; D002986:Clinical Trials as Topic; D004599:Electric Stimulation Therapy / Q000379:methods*; D005500:Follow-Up Studies; D006801:Humans; D008297:Male; D008875:Middle Aged; D011897:Random Allocation