Reproducibility and normal values of the single breath nitrogen test.
D000328:Adult; D000367:Age Factors; D005260:Female; D006801:Humans; D008297:Male; D008433:Mathematics; D008722:Methods; D008875:Middle Aged; D009584:Nitrogen / Q000032:analysis*; D011650:Pulmonary Alveoli / Q000502:physiology*; D012129:Respiratory Function Tests; D012737:Sex Factors; D012907:Smoking / Q000503:physiopathology*; D013147:Spirometry; D013997:Time Factors