[Study on the distribution of intrapulmonary gas--measurement of slow space by a constant--volume closed-circuit method].
D000328:Adult; D000368:Aged; D005260:Female; D006371:Helium; D006801:Humans; D008168:Lung / Q000502:physiology*; D008171:Lung Diseases / Q000503:physiopathology; D008297:Male; D008722:Methods; D008875:Middle Aged; D012129:Respiratory Function Tests
D006371:Helium