title: The effect of transcutaneous nerve stimulation (TNS) on chronic facial pain.
mesh_terms: D000328:Adult; D000368:Aged; D002908:Chronic Disease; D002986:Clinical Trials as Topic; D004599:Electric Stimulation Therapy; D005069:Evaluation Studies as Topic; D005260:Female; D006801:Humans; D008036:Lingual Nerve; D008297:Male; D008875:Middle Aged; D009437:Neuralgia / Q000628:therapy*; D010919:Placebos; D013706:Temporomandibular Joint Dysfunction Syndrome / Q000628:therapy*; D014277:Trigeminal Neuralgia / Q000628:therapy*
chemical_list: D010919:Placebos