The helium-dilution method in determination of ventilatory disturbances; a new method for data treatment.
D004646:Emphysema; D006371:Helium; D011656:Pulmonary Emphysema / Q000502:physiology*; D012123:Pulmonary Ventilation; D012129:Respiratory Function Tests
D006371:Helium
EMPHYSEMA, PULMONARY/physiology; RESPIRATION/function tests