title: Cognitive therapy and relaxation training in muscle contraction headache: efficacy and cost-effectiveness.
mesh_terms: D000328:Adult; D003362:Cost-Benefit Analysis; D005069:Evaluation Studies as Topic; D005260:Female; D006261:Headache / Q000191:economics / Q000628:therapy*; D006801:Humans; D008297:Male; D009119:Muscle Contraction; D011613:Psychotherapy / Q000379:methods*; D011897:Random Allocation; D012064:Relaxation Therapy