Recovery of  133 Xe from the expired gas in lung function studies.
D002606:Charcoal; D002845:Chromatography; D003666:Decontamination; D008722:Methods; D011868:Radioisotopes; D013147:Spirometry; D014978:Xenon / Q000032:analysis / Q000302:isolation & purification*
D011868:Radioisotopes; D002606:Charcoal; D014978:Xenon