title: Initiation of sustained rhythmic activity by single propagated action potentials in canine cardiac Purkinje fibers exposed to sodium-free solution or to ouabain.
mesh_terms: D000200:Action Potentials / Q000187:drug effects*; D000818:Animals; D004285:Dogs; D006329:Heart Conduction System / Q000187:drug effects*; D008564:Membrane Potentials; D009991:Oscillometry; D010042:Ouabain / Q000494:pharmacology*; D012964:Sodium / Q000378:metabolism / Q000494:pharmacology / Q000502:physiology*; D013757:Tetraethylammonium Compounds / Q000494:pharmacology*
chemical_list: D013757:Tetraethylammonium Compounds; D010042:Ouabain; D012964:Sodium