title: Ontological development of opiate receptors in rodent brain.
mesh_terms: D000367:Age Factors; D000818:Animals; D001921:Brain / Q000378:metabolism*; D005260:Female; D008297:Male; D009271:Naltrexone / Q000378:metabolism; D051381:Rats; D011957:Receptors, Opioid / Q000378:metabolism*
chemical_list: D011957:Receptors, Opioid; D009271:Naltrexone