title: Opiate receptor binding--enhancement by opiate administration in vivo.
mesh_terms: D000818:Animals; D001921:Brain / Q000378:metabolism; D004343:Drug Implants; D004361:Drug Tolerance; D008297:Male; D051379:Mice; D009020:Morphine / Q000494:pharmacology; D009022:Morphine Derivatives / Q000378:metabolism / Q000494:pharmacology*; D009292:Narcotic Antagonists / Q000494:pharmacology; D011955:Receptors, Drug / Q000187:drug effects*; D013268:Stimulation, Chemical; D013997:Time Factors
chemical_list: D004343:Drug Implants; D009022:Morphine Derivatives; D009292:Narcotic Antagonists; D011955:Receptors, Drug; D009020:Morphine