title: Sequence analysis of social behaviour illustrating the actions of two antagonists of endogenous opioids.
mesh_terms: D000374:Aggression / Q000187:drug effects; D000818:Animals; D004305:Dose-Response Relationship, Drug; D004743:Enkephalin, Leucine / Q000031:analogs & derivatives / Q000494:pharmacology; D006801:Humans; D008297:Male; D051379:Mice; D009270:Naloxone / Q000494:pharmacology; D009292:Narcotic Antagonists / Q000494:pharmacology*; D011957:Receptors, Opioid / Q000187:drug effects; D012919:Social Behavior / Q000187:drug effects*
chemical_list: D009292:Narcotic Antagonists; D011957:Receptors, Opioid; D009270:Naloxone; D004743:Enkephalin, Leucine; C036405:ICI 154129