Extracellular matrix in testicular differentiation.
D000818:Animals; D004622:Embryo, Mammalian / Q000648:ultrastructure; D005109:Extracellular Matrix / Q000648:ultrastructure*; D008297:Male; D008854:Microscopy, Electron; D009924:Organ Culture Techniques; D051381:Rats; D013737:Testis / Q000196:embryology* / Q000648:ultrastructure