Cockcroft, D W The effect of helium on nasal resistance and nasal flows. [electronic resource] - The American review of respiratory disease Sep 1979 - 697-9 p. digital Publication Type: Journal Article ISSN: 0003-0805 Standard No.: 10.1164/arrd.1979.120.3.697 doi Subjects--Topical Terms: Airway ResistanceAltitudeDensitometryHelium--pharmacologyHumansOxygenVital Capacity