title: [When a headache has to be investigated?].
authors.forename: J
authors.initials: J
authors.lastname: Pascual
authors.forename: J
authors.initials: J
authors.lastname: Berciano
mesh_terms: D000328:Adult; D003937:Diagnosis, Differential; D005260:Female; D006261:Headache / Q000175:diagnosis* / Q000209:etiology; D006801:Humans; D008297:Male; D008875:Middle Aged; D008881:Migraine Disorders / Q000175:diagnosis / Q000209:etiology; D018781:Tension-Type Headache / Q000175:diagnosis / Q000209:etiology