title: Botulinum toxin for treatment of primary chronic headache disorders.
mesh_terms: D054598:Blue Cross Blue Shield Insurance Plans; D019274:Botulinum Toxins, Type A / Q000627:therapeutic use*; D017277:Drug Approval; D019317:Evidence-Based Medicine; D020773:Headache Disorders / Q000188:drug therapy*; D006801:Humans; D019458:Insurance Coverage; D017063:Outcome Assessment, Health Care; D013673:Technology Assessment, Biomedical; D014481:United States; D014486:United States Food and Drug Administration
chemical_list: D019274:Botulinum Toxins, Type A