title: Effect of chronic administration of morphine on monoamine oxidase activity in discrete regions of the brain of rats.
mesh_terms: D000818:Animals; D001921:Brain / Q000187:drug effects / Q000201:enzymology*; D004361:Drug Tolerance; D008297:Male; D008995:Monoamine Oxidase / Q000378:metabolism*; D009020:Morphine / Q000008:administration & dosage / Q000494:pharmacology*; D009043:Motor Activity / Q000187:drug effects; D051381:Rats; D013997:Time Factors
chemical_list: D009020:Morphine; D008995:Monoamine Oxidase