The spread of sinus activation during potassium administration.
D000818:Animals; D004285:Dogs; D004558:Electric Stimulation; D004562:Electrocardiography; D004594:Electrophysiology; D006321:Heart / Q000502:physiology*; D006327:Heart Block / Q000209:etiology*; D006329:Heart Conduction System / Q000187:drug effects*; D066298:In Vitro Techniques; D011189:Potassium Chloride / Q000494:pharmacology*; D014630:Vagus Nerve / Q000502:physiology
D011189:Potassium Chloride