title: The establishment and sexual differentiation of the horse gonad.
mesh_terms: D000818:Animals; D005260:Female; D006736:Horses / Q000196:embryology*; D008297:Male; D008650:Mesonephros / Q000648:ultrastructure; D008854:Microscopy, Electron; D010053:Ovary / Q000196:embryology* / Q000648:ultrastructure; D012733:Sex Differentiation; D013737:Testis / Q000196:embryology* / Q000648:ultrastructure