Objective: To explore the practical value of Down's screening and antenatal diagnosis in preventing and decreasing chromosomal disease and congenital birth defect.
目的：探讨唐氏筛查及产前诊断在预防和减少染色体病及先天缺陷儿出生的实用价值。
Objective To study the possible cause in misdiagnosis and missed diagnosis of fetal birth defect (congenital fetal malformation) detected by ultrasound.
目的探讨超声诊断胎儿出生缺陷(胎儿先天畸形)可能出现的漏误诊原因。
Objective To study the possible cause in misdiagnosis and missed diagnosis of fetal birth defect (congenital fetal malformation) detected by ultrasound.
目的探讨超声诊断胎儿出生缺陷(胎儿先天畸形)可能出现的漏误诊原因。
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