title: Pacemakers.
mesh_terms: D002302:Cardiac Output; D003327:Coronary Disease / Q000503:physiopathology / Q000628:therapy*; D004560:Electricity; D004562:Electrocardiography; D005069:Evaluation Studies as Topic; D006321:Heart / Q000503:physiopathology*; D006801:Humans; D007432:Intraoperative Period; D008564:Membrane Potentials; D009203:Myocardial Infarction / Q000503:physiopathology; D010138:Pacemaker, Artificial / Q000145:classification / Q000592:standards; D011188:Potassium / Q000378:metabolism
chemical_list: D011188:Potassium