Changes in myocardial potassium balance without variation of the interstroke interval.
D000818:Animals; D002302:Cardiac Output; D004285:Dogs; D006321:Heart / Q000502:physiology*; D006439:Hemodynamics; D009206:Myocardium / Q000378:metabolism*; D011188:Potassium / Q000378:metabolism*
D011188:Potassium