Cardiac ultrasound of the fetus.
D001145:Arrhythmias, Cardiac / Q000175:diagnosis*; D005260:Female; D005315:Fetal Diseases / Q000175:diagnosis*; D006330:Heart Defects, Congenital / Q000175:diagnosis*; D006801:Humans; D011247:Pregnancy; D011296:Prenatal Diagnosis; D014463:Ultrasonography