title: Hypophysectomy differentially affects morphine and stress analgesia.
mesh_terms: D000818:Animals; D004597:Electroshock; D007016:Hypophysectomy; D008297:Male; D009020:Morphine / Q000494:pharmacology*; D010146:Pain / Q000503:physiopathology*; D051381:Rats; D011930:Reaction Time / Q000187:drug effects; D013312:Stress, Physiological / Q000503:physiopathology*
chemical_list: D009020:Morphine