title: Bronchodilator therapy in chronic airflow obstruction.
mesh_terms: D000318:Adrenergic beta-Agonists / Q000627:therapeutic use; D001993:Bronchodilator Agents / Q000627:therapeutic use*; D006801:Humans; D009241:Ipratropium / Q000627:therapeutic use; D008173:Lung Diseases, Obstructive / Q000188:drug therapy*; D009921:Metaproterenol / Q000627:therapeutic use; D010276:Parasympatholytics / Q000627:therapeutic use; D013806:Theophylline / Q000627:therapeutic use
chemical_list: D000318:Adrenergic beta-Agonists; D001993:Bronchodilator Agents; D010276:Parasympatholytics; D009921:Metaproterenol; D013806:Theophylline; D009241:Ipratropium