title: [Chronic urticaria: etiology and diagnosis].
mesh_terms: D000293:Adolescent; D000328:Adult; D000368:Aged; D002908:Chronic Disease; D005260:Female; D005873:Giardiasis / Q000150:complications* / Q000175:diagnosis; D006801:Humans; D008297:Male; D008875:Middle Aged; D014581:Urticaria / Q000175:diagnosis / Q000209:etiology*
vernacular_title: Urticaria crónica: etiología y diagnóstico.