title: Biofeedback and headache.
mesh_terms: D000293:Adolescent; D000328:Adult; D000368:Aged; D001521:Behavior Therapy; D001676:Biofeedback, Psychology; D002648:Child; D004576:Electromyography; D006261:Headache / Q000628:therapy*; D006801:Humans; D008875:Middle Aged