title: Demonstration of opiate receptor sub-types in vivo.
mesh_terms: D000818:Animals; D001921:Brain / Q000187:drug effects; D003496:Cyclazocine / Q000031:analogs & derivatives / Q000494:pharmacology; D004174:Diprenorphine / Q000494:pharmacology; D016314:Ethylketocyclazocine; D005048:Etorphine / Q000494:pharmacology; D008297:Male; D009270:Naloxone / Q000494:pharmacology; D051381:Rats; D011919:Rats, Inbred Strains; D011957:Receptors, Opioid / Q000032:analysis* / Q000187:drug effects; D014316:Tritium
chemical_list: D011957:Receptors, Opioid; D014316:Tritium; D004174:Diprenorphine; D009270:Naloxone; D005048:Etorphine; D016314:Ethylketocyclazocine; D003496:Cyclazocine