Cardiac arrhythmias in infants and children.
D000293:Adolescent; D001145:Arrhythmias, Cardiac / Q000175:diagnosis*; D002648:Child; D002675:Child, Preschool; D004562:Electrocardiography; D005260:Female; D006327:Heart Block / Q000175:diagnosis*; D006801:Humans; D007223:Infant; D007231:Infant, Newborn; D008297:Male; D013614:Tachycardia, Paroxysmal / Q000175:diagnosis*