title: The effect of intermittent positive pressure breathing and of bronchodilator drugs on alveolar nitrogen clearance in patients with chronic obstructive pulmonary emphysema.
mesh_terms: D001993:Bronchodilator Agents; D019069:Cell Respiration; D006801:Humans; D007384:Intermittent Positive-Pressure Breathing; D009584:Nitrogen; D011656:Pulmonary Emphysema / Q000628:therapy*; D012119:Respiration; D012121:Respiration, Artificial; D013566:Sympathomimetics / Q000628:therapy*
chemical_list: D001993:Bronchodilator Agents; D013566:Sympathomimetics; D009584:Nitrogen
keywords: PULMONARY EMPHYSEMA/therapy; RESPIRATION, ARTIFICIAL; SYMPATHOMIMETICS/therapy