唐氏筛查临界风险的非高龄孕妇有必要行无创性产前检测：6804例结果分析
杨兴坤，郭晓玲，钟 进，陈志华，吴水娟
Noninvasive prenatal genetic testing in 6804 pregnant women aged less than 35 years with positive results in serum screening
南方医科大学学报
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2019, (11): 1350
-1356
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DOI: 10.12122/j.issn.1673-4254.2019.11.12
