title: Airways flow resistance as a measure of the efficacy of inhalants in clinical drug trials.
mesh_terms: D000336:Aerosols; D001986:Bronchial Spasm / Q000188:drug therapy; D001993:Bronchodilator Agents / Q000008:administration & dosage*; D002986:Clinical Trials as Topic; D006801:Humans; D007545:Isoproterenol / Q000008:administration & dosage; D010656:Phenylephrine / Q000008:administration & dosage; D010919:Placebos; D010991:Plethysmography; D012143:Respiratory Physiological Phenomena; D012140:Respiratory Tract Diseases / Q000188:drug therapy*; D013147:Spirometry
chemical_list: D000336:Aerosols; D001993:Bronchodilator Agents; D010919:Placebos; D010656:Phenylephrine; D007545:Isoproterenol