title: Analysis of the placebo effect and spontaneous changes of airway obstruction in asthmatic patients.
mesh_terms: D000293:Adolescent; D000328:Adult; D000336:Aerosols; D000368:Aged; D001249:Asthma / Q000188:drug therapy*; D001993:Bronchodilator Agents / Q000627:therapeutic use*; D002986:Clinical Trials as Topic; D005260:Female; D006801:Humans; D007545:Isoproterenol / Q000627:therapeutic use; D008297:Male; D008875:Middle Aged; D010919:Placebos / Q000627:therapeutic use*; D012137:Respiratory System; D013997:Time Factors
chemical_list: D000336:Aerosols; D001993:Bronchodilator Agents; D010919:Placebos; D007545:Isoproterenol