OBJECTIVES: Cell-free DNA (cf-DNA) based non-invasive prenatal testing (NIPT) had large-scale validation data in singlet......

目的：探讨无创性染色体非整倍体检测技术在临床中的应用价值。方法采用高通量基因测序技术对1680例孕妇进行母体血浆游离胎儿 DNA ......