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The Endowment for Human Development
The Endowment for Human Development
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Male and Female


11 weeks, 3 days

From The Biology of Prenatal Development.Buy Now

Script: 3 MOIS - 11 SEMAINES 3 JOURS

Bien que le sexe soit déterminé à la fertilisation, on distingue à présent les organes génitaux externes en tant que masculins ou féminins.

All ages referenced to fertilization, not last menstrual period.
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