Organogenesis and endocrine cytodifferentiation of the testis.
D000818:Animals; D002454:Cell Differentiation; D005260:Female; D007985:Leydig Cells / Q000166:cytology; D008297:Male; D011247:Pregnancy; D012733:Sex Differentiation; D013737:Testis / Q000166:cytology / Q000196:embryology*