Development.
D000818:Animals; D001369:Axons / Q000502:physiology; D002452:Cell Count; D002470:Cell Survival / Q000502:physiology; D002490:Central Nervous System / Q000196:embryology*; D051379:Mice; D009473:Neuronal Plasticity; D009474:Neurons / Q000502:physiology*; D051381:Rats; D013569:Synapses / Q000502:physiology*