الفهرس 
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Abstract
The first unequivocal demonstration of the presence of a upecific estrogenic hormone in the mammalian ovary was made about 40 years ago 1,2 the designation of the aubetance as the female sex hormone sceand at first to be approtrated in female blood 4 and in human pregnant urine 5 three orlginal observations pertation to the female were however.