title: Recurrent croup and allergy.
mesh_terms: D002648:Child; D003440:Croup / Q000209:etiology* / Q000276:immunology; D006801:Humans; D006967:Hypersensitivity / Q000150:complications*; D007827:Laryngitis / Q000209:etiology*; D012008:Recurrence; D012306:Risk