| pubmed-article:1151490 | pubmed:abstractText | Measurements of exhaled 37-Ar produced by total-body neutron irradiation of 40-Ca were used to determine total-body calcium in 16 human subjects. There was a good correlation between body calcium using the 30-min postirradiation breath sample of 37-Ar and body calcium determined by measurement of 49-Ca. | lld:pubmed |
