Fetal electrocardiogrms, showing cardiac malformation, including heart block.
D002648:Child; D004562:Electrocardiography; D005333:Fetus / Q000502:physiology*; D006327:Heart Block; D006330:Heart Defects, Congenital / Q000175:diagnosis*; D006801:Humans; D007223:Infant
ELECTROCARDIOGRAPHY/in infancy and childhood; FETUS/physiology; HEART DEFECTS, CONGENITAL/diagnosis