title: Headache and cervical spine disorders: classification and treatment with transcutaneous electrical nerve stimulation.
mesh_terms: D000328:Adult; D000368:Aged; D002574:Cervical Vertebrae; D005260:Female; D006261:Headache / Q000145:classification* / Q000628:therapy; D006801:Humans; D008297:Male; D008875:Middle Aged; D013122:Spinal Diseases / Q000150:complications*; D004561:Transcutaneous Electric Nerve Stimulation