title: Enkephalins: the search for a functional role.
mesh_terms: D001714:Bipolar Disorder / Q000188:drug therapy / Q000209:etiology; D004723:Endorphins / Q000502:physiology*; D004745:Enkephalins / Q000502:physiology*; D006801:Humans; D009270:Naloxone / Q000627:therapeutic use; D009619:Nociceptors / Q000187:drug effects / Q000503:physiopathology; D010146:Pain / Q000503:physiopathology; D012559:Schizophrenia / Q000188:drug therapy / Q000209:etiology
chemical_list: D004723:Endorphins; D004745:Enkephalins; D009270:Naloxone