title: Duovent inhaler v Inhalets in patients with asthma and chronic bronchitis.
authors.forename: I
authors.initials: I
authors.lastname: Town
mesh_terms: D001249:Asthma / Q000188:drug therapy* / Q000503:physiopathology; D001286:Atropine Derivatives / Q000008:administration & dosage*; D001991:Bronchitis / Q000188:drug therapy*; D001993:Bronchodilator Agents / Q000008:administration & dosage* / Q000627:therapeutic use; D002908:Chronic Disease; D004338:Drug Combinations / Q000008:administration & dosage / Q000627:therapeutic use; D005280:Fenoterol / Q000008:administration & dosage* / Q000627:therapeutic use; D005541:Forced Expiratory Volume; D006801:Humans; D009241:Ipratropium / Q000008:administration & dosage* / Q000627:therapeutic use; D009330:Nebulizers and Vaporizers
chemical_list: D001286:Atropine Derivatives; D001993:Bronchodilator Agents; D004338:Drug Combinations; C030809:fenoterol, ipratropium drug combination; D005280:Fenoterol; D009241:Ipratropium