title: Electron microscopic changes in the active zone of the synapses in an acute projected epileptic cortical focus in the rat.
mesh_terms: D000818:Animals; D002540:Cerebral Cortex / Q000648:ultrastructure*; D008297:Male; D010406:Penicillins; D051381:Rats; D012640:Seizures / Q000139:chemically induced / Q000473:pathology*; D013569:Synapses / Q000648:ultrastructure*
chemical_list: D010406:Penicillins