title: Spirometry in assessing non-obstructive ventilatory impairment.
mesh_terms: D000367:Age Factors; D000368:Aged; D005260:Female; D006801:Humans; D008171:Lung Diseases / Q000503:physiopathology*; D008297:Male; D008875:Middle Aged; D012119:Respiration; D012907:Smoking; D013147:Spirometry; D014797:Vital Capacity