title: [Common or dangerous headache?--a clinical challenge].
authors.affiliation: ingela.nilsson-remahl@karolinska.se
authors.forename: Ingela Nilsson
authors.initials: IN
authors.lastname: Remahl
authors.forename: Elisabet
authors.initials: E
authors.lastname: Waldenlind
authors.forename: Christina
authors.initials: C
authors.lastname: Sjöstrand
authors.forename: Eva Laudon
authors.initials: EL
authors.lastname: Meyer
mesh_terms: D000208:Acute Disease; D006261:Headache / Q000145:classification / Q000175:diagnosis* / Q000209:etiology / Q000628:therapy; D020773:Headache Disorders / Q000145:classification / Q000175:diagnosis* / Q000209:etiology / Q000628:therapy; D006801:Humans; D018810:Magnetic Resonance Angiography; D012008:Recurrence