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JAMA. 1937;109(26):2144. doi:10.1001/jama.1937.02780520034012.
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RETENTION AND ELIMINATION OF SELENIUM  As already pointed out in The Journal,1 the poisonous character of the forage crops and grains grown in certain of the North Central and Western states in this county is due to the presence of compounds of selenium in these feeds. Many people living in these regions excreted appreciable amounts of selenium in the urine and showed symptoms of chronic selenium poisoning. Of considerable interest, therefore, are the recent studies from the National Institute of Health2 on the distribution of selenium in tissues in chronic poisoning and its elimination from the body. Sodium selenite was administered subcutaneously or by mouth to cats for from fifteen to 188 days and in dosages representing from 0.02 to 0.25 mg. of selenium per kilogram of body weight. A large part of the substance (from 50 to 80 per cent) was excreted in the urine, a greater


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