title: A comparative trial of three metered bronchodilator aerosols in asthma.
mesh_terms: D000328:Adult; D000336:Aerosols; D001249:Asthma / Q000188:drug therapy*; D001993:Bronchodilator Agents / Q000008:administration & dosage / Q000627:therapeutic use*; D005260:Female; D006801:Humans; D008297:Male
chemical_list: D000336:Aerosols; D001993:Bronchodilator Agents