Plethysmographic assessment of trapped air in man.
D000403:Airway Resistance; D001980:Bronchi / Q000503:physiopathology; D001991:Bronchitis / Q000503:physiopathology*; D002908:Chronic Disease; D006371:Helium; D006801:Humans; D008722:Methods; D010991:Plethysmography; D011656:Pulmonary Emphysema / Q000503:physiopathology*; D013147:Spirometry
D006371:Helium