Early embryogenesis of the central nervous system with special reference to closure defects.
D000757:Anencephaly; D000818:Animals; D002490:Central Nervous System / Q000196:embryology*; D002642:Chick Embryo; D004626:Embryology; D006801:Humans; D008648:Mesoderm; D051379:Mice; D051381:Rats; D016135:Spinal Dysraphism