![Table 1 from Nuchal translucency in normal fetus and its variation with increasing crown rump length (CRL) and gestational age. | Semantic Scholar Table 1 from Nuchal translucency in normal fetus and its variation with increasing crown rump length (CRL) and gestational age. | Semantic Scholar](https://d3i71xaburhd42.cloudfront.net/6bba0ba6d67bfd8d1f323dad5f74ca03fbdfcbde/3-Table1-1.png)
Table 1 from Nuchal translucency in normal fetus and its variation with increasing crown rump length (CRL) and gestational age. | 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://cdnintech.com/media/chapter/18452/1512345123/media/image2.png)
First Trimester Screening for Trisomy 21 by Maternal Age, Nuchal Translucency and Fetal Nasal Bone in Unselected Pregnancies | IntechOpen
![Four years experience of first‐trimester nuchal translucency screening for fetal aneuploidies with increasing regional availability - Wayda - 2001 - Acta Obstetricia et Gynecologica Scandinavica - Wiley Online Library Four years experience of first‐trimester nuchal translucency screening for fetal aneuploidies with increasing regional availability - Wayda - 2001 - Acta Obstetricia et Gynecologica Scandinavica - Wiley Online Library](https://obgyn.onlinelibrary.wiley.com/cms/asset/cba332f2-39cd-4373-8484-b2ed9ab45bb5/aog_801205_t2.gif)
Four years experience of first‐trimester nuchal translucency screening for fetal aneuploidies with increasing regional availability - Wayda - 2001 - Acta Obstetricia et Gynecologica Scandinavica - Wiley Online Library
![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/7-Table2-1.png)