胎盘和覆盖它的组织（称作绒毛膜）跟你的身体是同一种遗传物质组成的，它们可以提供重要的关于先天缺陷的信息。
The placenta and tissue covering it ( called chorionic villi) are made up of the same genetic material as your baby and can provide important information about birth defects.
宫内诊断即产前诊断，是指在胎儿出生前，通过各种手段对胎儿进行先天性缺陷或遗传性疾病的诊断。
Fetal in utero diagnosis, that is, prenatal diagnosis, means diagnosis of those abnormal babies with congenital defect or inheritance disease before their delivery.
近年来，脐血造血干细胞移植已广泛用于治疗儿童白血病、先天性免疫缺陷病、遗传性代谢病等方面。
Till now cord blood transplantation has been widely used in treating children leukemia, inborn immune deficiency, heritage metabolic disease and so on.
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