A comparative study of intrapulmonary gas mixing and functional residual capacity in pulmonary emphysema, using helium and nitrogen as the test gases.
D004646:Emphysema; D005652:Functional Residual Capacity; D005740:Gases; D006371:Helium; D006801:Humans; D008168:Lung; D009584:Nitrogen; D011656:Pulmonary Emphysema / Q000502:physiology*
D005740:Gases; D006371:Helium; D009584:Nitrogen
EMPHYSEMA, PULMONARY/physiology; HELIUM; NITROGEN