title: Letter: Racemic epinephrine in croup.
mesh_terms: D000336:Aerosols; D000402:Airway Obstruction / Q000209:etiology / Q000628:therapy; D002648:Child; D002986:Clinical Trials as Topic; D004837:Epinephrine / Q000008:administration & dosage / Q000009:adverse effects / Q000627:therapeutic use*; D005069:Evaluation Studies as Topic; D006801:Humans; D007536:Isomerism; D007827:Laryngitis / Q000145:classification / Q000150:complications / Q000188:drug therapy*; D007902:Length of Stay; D010919:Placebos; D064705:Racepinephrine; D014140:Tracheotomy
chemical_list: D000336:Aerosols; D010919:Placebos; D064705:Racepinephrine; D004837:Epinephrine