title: The establishment of positional identity in the developing nervous system. Special issue.
mesh_terms: D000818:Animals; D001921:Brain / Q000196:embryology; D004622:Embryo, Mammalian / Q000502:physiology; D005314:Embryonic and Fetal Development; D005786:Gene Expression Regulation; D005801:Genes, Homeobox; D006801:Humans; D009420:Nervous System / Q000196:embryology*; D009435:Synaptic Transmission / Q000502:physiology