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超声软指标联合无创DNA产前检测筛查胎儿染色体异常效果
何晓俊 马玉成 冷培
The analysis of ultrasound soft index combined with non-invasive prenatal DNA testing for fetal chromosomal abnormality screening
HE Xiaojun, MA Yucheng, LENG Pei
中国计划生育学杂志 . 2019, (5): 620 .