title: Regarding botulinum toxin for the prophylaxis of chronic daily headache.
authors.forename: Seymour
authors.initials: S
authors.lastname: Solomon
mesh_terms: D001905:Botulinum Toxins / Q000627:therapeutic use*; D002908:Chronic Disease; D006261:Headache / Q000517:prevention & control*; D006801:Humans; D012107:Research Design
chemical_list: D001905:Botulinum Toxins