title: Selective radioligands for characterization and neuroanatomical distribution studies of brain opioid receptors.
mesh_terms: D000818:Animals; D001345:Autoradiography; D001921:Brain / Q000378:metabolism*; D001931:Brain Mapping; D002462:Cell Membrane / Q000378:metabolism; D003342:Corpus Striatum / Q000378:metabolism; D004723:Endorphins / Q000378:metabolism; D008024:Ligands; D011869:Radioligand Assay; D051381:Rats; D011957:Receptors, Opioid / Q000378:metabolism*
chemical_list: D004723:Endorphins; D008024:Ligands; D011957:Receptors, Opioid