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First Trimester Screening for Trisomy 21 by Maternal Age, Nuchal Translucency and Fetal Nasal Bone in Unselected Pregnancies | IntechOpen
![Table I from Screening for trisomies 21, 18 and 13 by maternal age, fetal nuchal translucency, fetal heart rate, free beta-hCG and pregnancy-associated plasma protein-A. | Semantic Scholar Table I from Screening for trisomies 21, 18 and 13 by maternal age, fetal nuchal translucency, fetal heart rate, free beta-hCG and pregnancy-associated plasma protein-A. | Semantic Scholar](https://d3i71xaburhd42.cloudfront.net/278d84ba15efc27d74c3337c056ae60c590ee032/3-TableI-1.png)
Table I from Screening for trisomies 21, 18 and 13 by maternal age, fetal nuchal translucency, fetal heart rate, free beta-hCG and pregnancy-associated plasma protein-A. | Semantic Scholar
![Table II from Screening for trisomies 21, 18 and 13 by maternal age, fetal nuchal translucency, fetal heart rate, free beta-hCG and pregnancy-associated plasma protein-A. | Semantic Scholar Table II from Screening for trisomies 21, 18 and 13 by maternal age, fetal nuchal translucency, fetal heart rate, free beta-hCG and pregnancy-associated plasma protein-A. | Semantic Scholar](https://d3i71xaburhd42.cloudfront.net/278d84ba15efc27d74c3337c056ae60c590ee032/3-TableII-1.png)
Table II from Screening for trisomies 21, 18 and 13 by maternal age, fetal nuchal translucency, fetal heart rate, free beta-hCG and pregnancy-associated plasma protein-A. | Semantic Scholar
![PDF] First-trimester risk calculation for trisomy 13, 18, and 21: comparison of the screening efficiency between 2 locally developed programs and commercial software. | Semantic Scholar PDF] First-trimester risk calculation for trisomy 13, 18, and 21: comparison of the screening efficiency between 2 locally developed programs and commercial software. | Semantic Scholar](https://d3i71xaburhd42.cloudfront.net/a7d5b36f3aa2d8e0d07c528c8bc0752605231cbf/3-Table1-1.png)
PDF] First-trimester risk calculation for trisomy 13, 18, and 21: comparison of the screening efficiency between 2 locally developed programs and commercial software. | Semantic Scholar
![PDF] First-trimester screening for trisomy 21 in singleton pregnancies achieved by assisted reproduction. | Semantic Scholar PDF] First-trimester screening for trisomy 21 in singleton pregnancies achieved by assisted reproduction. | Semantic Scholar](https://d3i71xaburhd42.cloudfront.net/b8ed35e2946445d5cd223e597dfe594b2b784b56/3-TableIII-1.png)
PDF] First-trimester screening for trisomy 21 in singleton pregnancies achieved by assisted reproduction. | Semantic Scholar
![Table 3 from The clinical usefulness of biochemical (free β-hCg, PaPP-a) and ultrasound (nuchal translucency) parameters in prenatal screening of trisomy 21 in the first trimester of pregnancy. | Semantic Scholar Table 3 from The clinical usefulness of biochemical (free β-hCg, PaPP-a) and ultrasound (nuchal translucency) parameters in prenatal screening of trisomy 21 in the first trimester of pregnancy. | Semantic Scholar](https://d3i71xaburhd42.cloudfront.net/df64feabd4c7afce8285ca4067ceaa0fef4aeb8e/5-Table3-1.png)
Table 3 from The clinical usefulness of biochemical (free β-hCg, PaPP-a) and ultrasound (nuchal translucency) parameters in prenatal screening of trisomy 21 in the first trimester of pregnancy. | Semantic Scholar
![First Trimester Screening for Trisomy 21 by Maternal Age, Nuchal Translucency and Fetal Nasal Bone in Unselected Pregnancies | IntechOpen First Trimester Screening for Trisomy 21 by Maternal Age, Nuchal Translucency and Fetal Nasal Bone in Unselected Pregnancies | IntechOpen](https://www.intechopen.com/media/chapter/18452/media/image11.png)
First Trimester Screening for Trisomy 21 by Maternal Age, Nuchal Translucency and Fetal Nasal Bone in Unselected Pregnancies | IntechOpen
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Diagnostic value of maternal alpha-fetoprotein variants in second-trimester biochemical screening for trisomy 21 and 18 | Scientific Reports
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The assessment of combined first trimester screening in women of advanced maternal age in an Asian cohort | SMJ
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