
颜面轮廓超声指标、胎儿NT联合检查诊断唐氏综合征的价值
张瑛①
颜面轮廓超声指标、胎儿NT联合检查诊断唐氏综合征的价值
The Value of Combined Examination of Facial Contour Ultrasound Indicators and Fetal NT in the Diagnosis of Down Syndrome
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