title: The clinician's perspective.
authors.affiliation: Sunnybrook Medical Center, Toronto, Ontario.
authors.forename: J
authors.initials: J
authors.lastname: Edmeads
mesh_terms: D002170:Canada; D006261:Headache / Q000188:drug therapy* / Q000503:physiopathology; D006801:Humans; D007255:Information Services; D017410:Practice Guidelines as Topic; D014481:United States