title: Electrophysiologic properties of morphine in man.
mesh_terms: D000368:Aged; D001283:Atrioventricular Node / Q000187:drug effects / Q000502:physiology; D004562:Electrocardiography; D005260:Female; D006329:Heart Conduction System / Q000187:drug effects*; D006801:Humans; D008297:Male; D008875:Middle Aged; D009020:Morphine / Q000494:pharmacology*
chemical_list: D009020:Morphine