title: Persistent headache: danger!
authors.affiliation: State Volunteer Mutual Insurance Company, Brentwood, USA.
authors.forename: J Kelley
authors.initials: JK
authors.lastname: Avery
mesh_terms: D003937:Diagnosis, Differential; D017809:Fatal Outcome; D006261:Headache / Q000175:diagnosis / Q000209:etiology*; D006801:Humans; D002532:Intracranial Aneurysm / Q000150:complications / Q000175:diagnosis*; D020300:Intracranial Hemorrhages / Q000150:complications / Q000175:diagnosis*; D008297:Male; D019300:Medical Errors / Q000517:prevention & control*; D012852:Sinusitis / Q000150:complications / Q000175:diagnosis*; D014057:Tomography, X-Ray Computed