title: Opiate receptor heterogeneity in human brain regions.
mesh_terms: D001667:Binding, Competitive; D001921:Brain / Q000378:metabolism*; D004723:Endorphins / Q000378:metabolism*; D016308:Enkephalin, Leucine-2-Alanine; D004745:Enkephalins / Q000378:metabolism*; D006801:Humans; D007700:Kinetics; D009270:Naloxone / Q000378:metabolism*; D009928:Organ Specificity; D011957:Receptors, Opioid / Q000378:metabolism*
chemical_list: D004723:Endorphins; D004745:Enkephalins; D011957:Receptors, Opioid; D009270:Naloxone; D016308:Enkephalin, Leucine-2-Alanine