中国计划生育学杂志
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超声检测胎儿颈项透明层结合血清β-hCG、PAPP-A诊断孕早期胎儿染色体核型异常价值
河南省南阳市第一人民医院(473000)
Diagnostic value of ultrasonic detection of fetal nuchal translucency combined with the levels of serum human chorionic gonadotropin β and pregnancy associated plasma protein A of pregnant women for the chromosomal karyotype abnormality of their fetuses during the first trimester of pregnancy
The First People's Hospital of Nanyang, Henan Province, 473000