title: [Method of residual air determination].
mesh_terms: D006371:Helium / Q000032:analysis; D006801:Humans; D008168:Lung / Q000502:physiology*; D008722:Methods; D009584:Nitrogen; D012126:Respiratory Dead Space; D013147:Spirometry; D013997:Time Factors
chemical_list: D006371:Helium; D009584:Nitrogen
vernacular_title: Zur Methodik der Residualluftbestimmung.