title: The sensitivity of opioid mediated stress analgesia to narcotic antagonists.
mesh_terms: D000818:Animals; D004305:Dose-Response Relationship, Drug; D004723:Endorphins / Q000502:physiology*; D006801:Humans; D008297:Male; D009292:Narcotic Antagonists / Q000494:pharmacology*; D010146:Pain / Q000503:physiopathology*; D051381:Rats; D011919:Rats, Inbred Strains; D013315:Stress, Psychological / Q000503:physiopathology*
chemical_list: D004723:Endorphins; D009292:Narcotic Antagonists