title: Parsing the migraine attack.
authors.forename: R Allan
authors.initials: RA
authors.lastname: Purdy
authors.forename: Alan M
authors.initials: AM
authors.lastname: Rapoport
mesh_terms: D005767:Gastrointestinal Diseases / Q000175:diagnosis* / Q000453:epidemiology / Q000628:therapy*; D006801:Humans; D008881:Migraine Disorders / Q000175:diagnosis* / Q000453:epidemiology / Q000628:therapy*