title: Periodic depression by N-methyl-N-nitrosourea of electrocortical activity in the cat brain.
mesh_terms: D000818:Animals; D002415:Cats; D002540:Cerebral Cortex / Q000187:drug effects*; D004569:Electroencephalography; D004594:Electrophysiology / Q000187:drug effects; D007269:Injections, Intra-Arterial; D009603:Nitroso Compounds / Q000494:pharmacology*; D009607:Nitrosourea Compounds / Q000008:administration & dosage / Q000494:pharmacology; D010507:Periodicity; D014508:Urea / Q000494:pharmacology*
chemical_list: D009603:Nitroso Compounds; D009607:Nitrosourea Compounds; D014508:Urea