Changes in canine P wave morphology observed with shifts in intra-SA nodal pacemaker localization.
D000818:Animals; D002304:Cardiac Pacing, Artificial; D004285:Dogs; D004562:Electrocardiography; D004837:Epinephrine / Q000494:pharmacology; D005260:Female; D008297:Male; D012849:Sinoatrial Node / Q000502:physiology*; D013997:Time Factors
D004837:Epinephrine