title: Time course of the effects of an inhaled bronchodilator on gas distribution and ventilatory efficiency in patients with COPD.
mesh_terms: D000403:Airway Resistance; D001993:Bronchodilator Agents / Q000494:pharmacology*; D005652:Functional Residual Capacity; D006801:Humans; D008168:Lung / Q000378:metabolism*; D008173:Lung Diseases, Obstructive / Q000503:physiopathology*; D009921:Metaproterenol / Q000494:pharmacology; D009584:Nitrogen / Q000378:metabolism*; D010100:Oxygen / Q000097:blood / Q000378:metabolism; D011650:Pulmonary Alveoli / Q000378:metabolism; D012126:Respiratory Dead Space; D012129:Respiratory Function Tests; D013990:Tidal Volume
chemical_list: D001993:Bronchodilator Agents; D009921:Metaproterenol; D009584:Nitrogen; D010100:Oxygen