title: Quantitative analysis of the alveolar plateau in the diagnosis of early airway obstruction.
mesh_terms: D000293:Adolescent; D000328:Adult; D000367:Age Factors; D000368:Aged; D000402:Airway Obstruction / Q000175:diagnosis* / Q000209:etiology; D005260:Female; D006801:Humans; D008297:Male; D008875:Middle Aged; D009584:Nitrogen; D011650:Pulmonary Alveoli; D011656:Pulmonary Emphysema / Q000150:complications*; D012129:Respiratory Function Tests; D012737:Sex Factors; D012907:Smoking / Q000150:complications*
chemical_list: D009584:Nitrogen