title: Effects of high dose narcotics and controlled hypotensors on the heart conduction system.
mesh_terms: D000818:Animals; D004285:Dogs; D005260:Female; D005283:Fentanyl / Q000494:pharmacology; D006329:Heart Conduction System / Q000187:drug effects* / Q000503:physiopathology; D007023:Hypotension, Controlled; D008297:Male; D008614:Meperidine / Q000494:pharmacology; D009020:Morphine / Q000494:pharmacology; D009294:Narcotics / Q000008:administration & dosage / Q000494:pharmacology*; D011817:Rabbits
chemical_list: D009294:Narcotics; D009020:Morphine; D008614:Meperidine; D005283:Fentanyl