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Radioiodine Metabolism in Children and Adults after the Ingestion of Very Small Doses

M. A. Van Dilla and M. J. Fulwyler
Science
New Series, Vol. 144, No. 3615 (Apr. 10, 1964), pp. 178-179
Stable URL: http://www.jstor.org/stable/1713586
Page Count: 2
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Abstract

One day after oral ingestion of very small doses (about 0.01 microcurie) of an I$^{131}$/I$^{125}$ mixture, the radioiodine content of the thyroid gland was similar in children and adults (about 20 percent of the dose ingested) as was the biological half-life of the iodine (about 90 days). Measurements were made in 15 minutes by means of a whole-body counter with a cylindrical sodium iodide (Tl) crystal, 20 cm in diameter and 10 cm thick.

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