title: Ultrastructural differentiation of rat Sertoli cells.
mesh_terms: D000375:Aging; D000818:Animals; D002454:Cell Differentiation; D002467:Cell Nucleus / Q000648:ultrastructure; D008297:Male; D008854:Microscopy, Electron; D051381:Rats; D012708:Sertoli Cells / Q000648:ultrastructure*; D013737:Testis / Q000254:growth & development*