6CAPILLARY FRAGILITY AND VIT. 'P' PROTECTIVE ACTION pletely dispense with that gland.Summary. Pregnancy has been maintained in rats hypophysectomized on day 6 of their first pregnancy and injected daily subcutaneously for 6 days with placentae from rats: 12 majority of the test rats. One 12-day placenta plus 0.5 pg of estrone proved equally efficacious. Pregnancy was not maintained by similar treatment if the rats were also o6phorectomized.
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