Periodic sino-auricular block in an animal experiment.
D032761:Animal Experimentation; D000818:Animals; D001557:Benzenesulfonates; D006327:Heart Block; D009020:Morphine / Q000494:pharmacology*; D014630:Vagus Nerve / Q000502:physiology*
D001557:Benzenesulfonates; C057121:isononanoyl oxybenzene sulfonate; D009020:Morphine
HEART BLOCK/experimental; MORPHINE/effects; NERVES, VAGUS/physiology