A sonographic sign for detection of Down's syndrome.
Castillo
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RA
D004314:Down Syndrome / Q000175:diagnosis*; D004487:Edema / Q000175:diagnosis; D005260:Female; D005500:Follow-Up Studies; D006801:Humans; D011247:Pregnancy; D011262:Pregnancy Trimester, Second; D011296:Prenatal Diagnosis; D014463:Ultrasonography