title: Cases in electrocardiography.
mesh_terms: D000293:Adolescent; D000368:Aged; D001145:Arrhythmias, Cardiac / Q000175:diagnosis*; D001281:Atrial Fibrillation / Q000175:diagnosis / Q000188:drug therapy; D004562:Electrocardiography; D005260:Female; D006801:Humans; D008297:Male; D010490:Pericardial Effusion / Q000175:diagnosis; D013610:Tachycardia / Q000175:diagnosis