title: Acute systemic administration of morphine selectively increases mu opioid receptor binding in the rat brain.
mesh_terms: D000818:Animals; D001921:Brain / Q000187:drug effects* / Q000378:metabolism; D008297:Male; D009020:Morphine / Q000494:pharmacology*; D051381:Rats; D011919:Rats, Inbred Strains; D011957:Receptors, Opioid / Q000187:drug effects* / Q000378:metabolism; D017450:Receptors, Opioid, mu
chemical_list: D011957:Receptors, Opioid; D017450:Receptors, Opioid, mu; D009020:Morphine