A test of specific and nonspecific effects in the biofeedback treatment of tension headache.
D000328:Adult; D001676:Biofeedback, Psychology; D004576:Electromyography; D005260:Female; D006261:Headache / Q000628:therapy*; D006801:Humans; D008297:Male; D013315:Stress, Psychological / Q000628:therapy*