title: [Headaches can be life threatening, therefore: attend to alarm signs].
authors.forename: Peter
authors.initials: P
authors.lastname: Stiefelhagen
mesh_terms: D000328:Adult; D000368:Aged; D001021:Aortic Valve; D020215:Carotid Artery, Internal, Dissection / Q000175:diagnosis; D003397:Craniopharyngioma / Q000175:diagnosis; D003937:Diagnosis, Differential; D004698:Endocarditis, Subacute Bacterial / Q000175:diagnosis; D005260:Female; D013700:Giant Cell Arteritis / Q000175:diagnosis; D006261:Headache / Q000209:etiology*; D020200:Hematoma, Subdural, Chronic / Q000175:diagnosis; D006801:Humans; D007388:Internal Medicine; D008297:Male; D008875:Middle Aged; D008881:Migraine Disorders / Q000175:diagnosis; D010911:Pituitary Neoplasms / Q000175:diagnosis; D013345:Subarachnoid Hemorrhage / Q000175:diagnosis; D018781:Tension-Type Headache / Q000175:diagnosis