title: Bronchial hyperreactivity.
mesh_terms: D001249:Asthma / Q000188:drug therapy / Q000276:immunology*; D004205:Cromolyn Sodium / Q000627:therapeutic use; D004342:Drug Hypersensitivity / Q000209:etiology; D006801:Humans; D006969:Hypersensitivity, Immediate
chemical_list: D004205:Cromolyn Sodium