title: Differential vital capacity determinations with radioactive xenon.
mesh_terms: D000293:Adolescent; D000328:Adult; D006801:Humans; D008722:Methods; D008875:Middle Aged; D011868:Radioisotopes; D012907:Smoking / Q000503:physiopathology; D013147:Spirometry; D014797:Vital Capacity; D014978:Xenon
chemical_list: D011868:Radioisotopes; D014978:Xenon