title: Effects of morphine on medial thalamic and medial bulboreticular aversive stimulation thresholds.
mesh_terms: D000818:Animals; D001933:Brain Stem / Q000187:drug effects*; D004056:Differential Threshold; D004558:Electric Stimulation; D008297:Male; D009020:Morphine / Q000494:pharmacology*; D009619:Nociceptors / Q000187:drug effects*; D051381:Rats; D013788:Thalamus / Q000187:drug effects*; D014276:Trigeminal Nerve / Q000187:drug effects
chemical_list: D009020:Morphine