Electrocardiogram in hyperthyroid children.
D000293:Adolescent; D009202:Cardiomyopathies / Q000150:complications; D002648:Child; D002675:Child, Preschool; D004562:Electrocardiography; D005260:Female; D005500:Follow-Up Studies; D006327:Heart Block / Q000150:complications; D006801:Humans; D006980:Hyperthyroidism / Q000150:complications / Q000503:physiopathology*; D008297:Male; D013997:Time Factors