title: Botulinum toxin type a as a prophylactic treatment for chronic daily headache: time to conduct a large clinical trial in Taiwan?
authors.forename: Hsiu-Chih
authors.initials: HC
authors.lastname: Liu
mesh_terms: D019274:Botulinum Toxins, Type A / Q000627:therapeutic use*; D002986:Clinical Trials as Topic; D020773:Headache Disorders / Q000517:prevention & control*; D006801:Humans; D008881:Migraine Disorders / Q000188:drug therapy
chemical_list: D019274:Botulinum Toxins, Type A