title: DIRECT DETERMINATION OF THE MEAN NITROGEN CONCENTRATION IN CONNECTION WITH NITROGEN WASHOUT WITH MULTIPLE BREATH METHOD.
mesh_terms: D001249:Asthma; D035843:Biomedical Research; D001991:Bronchitis; D006801:Humans; D009584:Nitrogen; D011654:Pulmonary Edema; D011656:Pulmonary Emphysema; D011660:Pulmonary Heart Disease; D013147:Spirometry
chemical_list: D009584:Nitrogen
keywords: ASTHMA; BRONCHITIS; CLINICAL RESEARCH; NITROGEN; PULMONARY EDEMA; PULMONARY EMPHYSEMA; PULMONARY HEART DISEASE; SPIROMETRY