[Pacemaker change in sinoatrial region in patients].
D002320:Cardiovascular Physiological Phenomena; D004562:Electrocardiography; D006331:Heart Diseases / Q000502:physiology*; D006801:Humans; D010138:Pacemaker, Artificial
ELECTROCARDIOGRAPHY; HEART DISEASE/physiology
Schrittmacherwechsel im Sinus-Vorhof-Bereich von Patienten.