Cardiac arrhythmias in infants and children.
D001145:Arrhythmias, Cardiac / Q000175:diagnosis* / Q000503:physiopathology; D002648:Child; D002675:Child, Preschool; D004562:Electrocardiography; D006329:Heart Conduction System / Q000503:physiopathology; D006330:Heart Defects, Congenital / Q000175:diagnosis; D006801:Humans; D007223:Infant