Submicroscopical aspects in the differentiation of rat fetal Leydig cells.
D000818:Animals; D002454:Cell Differentiation; D004721:Endoplasmic Reticulum; D007985:Leydig Cells / Q000166:cytology* / Q000196:embryology; D008297:Male; D008854:Microscopy, Electron; D008928:Mitochondria; D051381:Rats