title: Synapses in newborn rat cerebral cortex: a quantitative ultrastructural study.
mesh_terms: D000818:Animals; D000831:Animals, Newborn / Q000033:anatomy & histology*; D002540:Cerebral Cortex / Q000648:ultrastructure*; D051381:Rats; D013569:Synapses / Q000648:ultrastructure*; D013570:Synaptic Membranes / Q000648:ultrastructure; D013572:Synaptic Vesicles / Q000648:ultrastructure