title: Brain opioid peptides and the control of prolactin secretion: neonatal organization.
mesh_terms: D000367:Age Factors; D000818:Animals; D000831:Animals, Newborn / Q000502:physiology*; D004723:Endorphins / Q000502:physiology*; D005260:Female; D008297:Male; D009270:Naloxone / Q000494:pharmacology*; D011388:Prolactin / Q000378:metabolism*; D051381:Rats; D012733:Sex Differentiation; D012737:Sex Factors; D013739:Testosterone / Q000494:pharmacology*
chemical_list: D004723:Endorphins; D009270:Naloxone; D013739:Testosterone; D011388:Prolactin