title: [Spontaneous fluctuations in the composition of alveolar air at rest and under loading].
mesh_terms: D000293:Adolescent; D000328:Adult; D002245:Carbon Dioxide / Q000032:analysis; D006801:Humans; D008176:Lung Volume Measurements; D013058:Mass Spectrometry; D008875:Middle Aged; D010100:Oxygen / Q000032:analysis; D005082:Physical Exertion; D011650:Pulmonary Alveoli / Q000502:physiology*; D011659:Pulmonary Gas Exchange; D012146:Rest; D013997:Time Factors
chemical_list: D002245:Carbon Dioxide; D010100:Oxygen
vernacular_title: Spontannye kolebaniia sostava al'veoliarnogo vozdukha v pokoe i pri nagruzke.