title: Endogenous opioids, opioid receptors, and neuronal development.
authors.affiliation: Department of Anatomy, Milton S. Hershey Medical Center, Pennsylvania State University, Hershey 17033.
authors.forename: I S
authors.initials: IS
authors.lastname: Zagon
mesh_terms: D000375:Aging; D000818:Animals; D001921:Brain / Q000254:growth & development*; D004723:Endorphins / Q000502:physiology*; D009474:Neurons / Q000502:physiology*; D011957:Receptors, Opioid / Q000502:physiology*
chemical_list: D004723:Endorphins; D011957:Receptors, Opioid