title: A comparative study of the effect of methionine enkephalin upon the stereospecific binding of an opiate agonist and an antagonist in mice and rats.
mesh_terms: D000818:Animals; D001667:Binding, Competitive; D001921:Brain / Q000378:metabolism*; D002462:Cell Membrane / Q000378:metabolism; D004723:Endorphins / Q000494:pharmacology*; D004745:Enkephalins / Q000494:pharmacology*; D051379:Mice; D009022:Morphine Derivatives / Q000378:metabolism*; D009270:Naloxone / Q000378:metabolism*; D051381:Rats; D011957:Receptors, Opioid / Q000187:drug effects / Q000378:metabolism*
chemical_list: D004723:Endorphins; D004745:Enkephalins; D009022:Morphine Derivatives; D011957:Receptors, Opioid; D009270:Naloxone