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Using as subjects two girls who had contracted radium poisoning during employment as dial painters during the period 1917 to 1919, the authors determined the rate of elimination of radium by determining the total quantity of radium present in each subject, as well as the quantity eliminated each day. The first of these values was arrived at by making gamma-ray measurements on the subjects by means of a standardized electrometer and adding to the value thus obtained the quantity of radium responsible for the radium emanation (radon) found present in the air expired. Combining all the experimental results, it appeared
The Detection and Estimation of Radium in Living Persons. III. The Normal Elimination of Radium.. Ann Intern Med. 1932;5:1041. doi: 10.7326/0003-4819-5-8-1041_1
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Published: Ann Intern Med. 1932;5(8):1041.
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