Neurobiology in statu nascendi.
D000818:Animals; D002642:Chick Embryo; D049673:History, 20th Century; D009420:Nervous System / Q000196:embryology*; D009462:Neurology / Q000266:history; D009474:Neurons / Q000502:physiology*; D013569:Synapses / Q000502:physiology; D014481:United States; D014981:Xenopus