The arterial--alveolar inert gas ("N2") difference in normal and emphysematous subjects, as indicated by the analysis of urine.
D001158:Arteries; D001826:Body Fluids; D006801:Humans; D009584:Nitrogen / Q000097:blood*; D011656:Pulmonary Emphysema
D009584:Nitrogen
NITROGEN/blood; PULMONARY EMPHYSEMA