Conclusion: it's effective to decrease the birth of fetal chromosomal abnormality by undergoing prenatal screening and diagnose with motherserum biochemical indicator in the second trimester.
结论孕中期应用母血清生化指标进行产前筛查，结合产前诊断是减少染色体异常患儿出生的有效方法。
2
RESULTS : Serum from the NAIT infants mother contained antibodies directed against a human PLT antigen (HPA) of the newborn.