title: Fine structure of the Leydig cell during postnatal differentiation of the mouse testis.
mesh_terms: D000818:Animals; D002454:Cell Differentiation; D002462:Cell Membrane; D004721:Endoplasmic Reticulum; D002479:Inclusion Bodies; D007985:Leydig Cells / Q000166:cytology*; D008247:Lysosomes; D008297:Male; D051379:Mice; D008854:Microscopy, Electron; D013737:Testis / Q000254:growth & development*