中国计划生育学杂志
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超声测量胎儿颈项透明层厚度的临床应用价值
首都医科大学附属北京妇产医院(北京,100026)
The clinical application value of ultrasonic measurement of fetal nuchal translucency thickness
Department of Obstetrics, Beijing Obstetrics and Gynecology Hospital, Capital Medical University, Beijing ,100026