title: Structural aspects of gonadal differentiation in mammals and birds.
mesh_terms: D000818:Animals; D001717:Birds / Q000033:anatomy & histology / Q000196:embryology* / Q000502:physiology; D002642:Chick Embryo; D005260:Female; D006066:Gonads / Q000033:anatomy & histology / Q000196:embryology*; D006182:H-Y Antigen / Q000502:physiology; D008297:Male; D008322:Mammals / Q000033:anatomy & histology / Q000196:embryology* / Q000502:physiology; D010053:Ovary / Q000196:embryology; D011817:Rabbits / Q000196:embryology; D012733:Sex Differentiation / Q000502:physiology*
chemical_list: D006182:H-Y Antigen