Pulmonary gas exchange during exercise in patients with chronic airway obstruction.
D001784:Blood Gas Analysis; D001991:Bronchitis; D006801:Humans; D005082:Physical Exertion / Q000502:physiology*; D011650:Pulmonary Alveoli / Q000502:physiology*; D011656:Pulmonary Emphysema; D012119:Respiration / Q000502:physiology*