New cut-off values for screening of trisomy 21, 18 and open neural tube defects (ONTD) during the second trimester in pregnant women with advanced maternal age

• Asıl Yazarlar: Yiming Chen (Yazar), Xue Wang (Yazar), Liyao Li (Yazar), Sha Lu (Yazar), Zhifen Zhang (Yazar)
• Materyal Türü: Kitap
• Baskı/Yayın Bilgisi: BMC, 2020-12-01T00:00:00Z.
• Konular: article
• Online Erişim: Connect to this object online.

Abstract Background To determine whether advanced maternal age (AMA) causes changes in the maternal serum markers of Trisomy 21, 18 and open neural tube defects (ONTD) during the second trimester of pregnancy. Our research aims to develop new cut-off values for AMA in order to reduce the need for fu...