Abstract
Conclusions
1. In thyroparathyroidectomized dogs suitable doses of either viosterol or parathormone will cause a rise in the level of the blood serum calcium, which is remarkably parallel to that of the electrical reaction figures, and, to a lesser extent, that of the urinary calcium excretion values. 2. The elimination of calcium by way of the feces is apparently increased during the administration of para-thormone and is decreased during that of viosterol, thus tending to produce a negative calcium balance in the former and a positive one in the latter instance.
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