Differences between inspired and expired minute volumes of nitrogen in man.
D002849:Chromatography, Gas; D004044:Dietary Proteins; D005215:Fasting; D006371:Helium; D006801:Humans; D008168:Lung / Q000378:metabolism*; D009584:Nitrogen / Q000378:metabolism*; D010100:Oxygen; D005082:Physical Exertion; D012119:Respiration; D013147:Spirometry; D013997:Time Factors
D004044:Dietary Proteins; D006371:Helium; D009584:Nitrogen; D010100:Oxygen