title: [Infrequent forms of headache].
mesh_terms: D000293:Adolescent; D000328:Adult; D000368:Aged; D005260:Female; D006261:Headache / Q000209:etiology*; D006801:Humans; D008297:Male; D008875:Middle Aged
vernacular_title: Formas infrecuentes de cefaleas.