title: Letter: Racemic epinephrine in croup.
mesh_terms: D000336:Aerosols; D000402:Airway Obstruction / Q000209:etiology / Q000628:therapy; D001991:Bronchitis / Q000188:drug therapy; D002648:Child; D004837:Epinephrine / Q000008:administration & dosage / Q000627:therapeutic use*; D005069:Evaluation Studies as Topic; D006801:Humans; D007536:Isomerism; D007827:Laryngitis / Q000150:complications / Q000188:drug therapy*; D064705:Racepinephrine; D014136:Tracheitis / Q000188:drug therapy; D014140:Tracheotomy
chemical_list: D000336:Aerosols; D064705:Racepinephrine; D004837:Epinephrine