[Determination of the normal value of transit time of alveolar air].
D000293:Adolescent; D000328:Adult; D000367:Age Factors; D002648:Child; D005260:Female; D006801:Humans; D008176:Lung Volume Measurements; D008297:Male; D008875:Middle Aged; D012123:Pulmonary Ventilation; D012016:Reference Values; D012737:Sex Factors; D013997:Time Factors