Congenital complete heart block in siblings.
D001132:Arm / Q000002:abnormalities; D002037:Bundle-Branch Block / Q000151:congenital / Q000235:genetics; D002648:Child; D002675:Child, Preschool; D004562:Electrocardiography; D005260:Female; D006327:Heart Block / Q000151:congenital* / Q000175:diagnosis / Q000235:genetics; D006801:Humans; D008297:Male