Diffusing capacity of the lungs in old age.
D000328:Adult; D000367:Age Factors; D000368:Aged; D005260:Female; D005652:Functional Residual Capacity; D006801:Humans; D008297:Male; D008451:Maximal Voluntary Ventilation; D008875:Middle Aged; D011653:Pulmonary Diffusing Capacity; D012115:Residual Volume; D012737:Sex Factors; D014109:Total Lung Capacity; D014797:Vital Capacity