[Research on the open circuit helium method for the evaluation of the unevenness of pulmonary ventilation. Application to the study of hyperventilation in normal and emphysematous subjects].
D006371:Helium; D006801:Humans; D006985:Hyperventilation; D011656:Pulmonary Emphysema / Q000175:diagnosis*; D012123:Pulmonary Ventilation; D012106:Research; D012119:Respiration / Q000502:physiology*
D006371:Helium
PULMONARY EMPHYSEMA/diagnosis; RESPIRATION/physiology