title: The significance of bronchial responsiveness in children.
mesh_terms: D000375:Aging / Q000502:physiology; D001980:Bronchi / Q000503:physiopathology*; D002648:Child; D002675:Child, Preschool; D006801:Humans; D012130:Respiratory Hypersensitivity / Q000453:epidemiology / Q000503:physiopathology