The site of action of beta-2-sympathomimetic bronchodilators in patients with chronic obstructive airway disease.
D001993:Bronchodilator Agents / Q000627:therapeutic use*; D006801:Humans; D008173:Lung Diseases, Obstructive / Q000188:drug therapy*; D013566:Sympathomimetics / Q000627:therapeutic use*
D001993:Bronchodilator Agents; D013566:Sympathomimetics