title: Diagnostic value of "closing volume" in comparison to "airway resistance-lung volume plot".
mesh_terms: D000109:Acetylcholine; D000328:Adult; D000368:Aged; D000402:Airway Obstruction / Q000503:physiopathology*; D000403:Airway Resistance; D001980:Bronchi / Q000503:physiopathology; D001991:Bronchitis / Q000503:physiopathology*; D002908:Chronic Disease; D005260:Female; D006371:Helium; D006801:Humans; D008170:Lung Compliance; D008297:Male; D010991:Plethysmography; D012129:Respiratory Function Tests
chemical_list: D006371:Helium; D000109:Acetylcholine