Abstract
Summary
Gonadotropic extracts of human pregnancy urine or pregnant mare's serum cause masculinization of female rats if treatment is started at 6 days of age and continued until the thirtieth day. The hypertrophy of the clitoris, prepuce and preputial glands is quite comparable to that induced by a similar course of treatment with testosterone. A gonadotropic pituitary extract did not cause any masculinization.
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