The ethnic composition in the 18th century was clear among the Slavs; 1  In a letter to Justinian Bert in 1756, Montenegrin chieftains said: We are of the Orthodox Christian faith and law of the Eastern Church, of the honorable and glorious Slav-Serb kin.
North Texas Tollway Authority. The North Texas Tollway Authority (NTTA) is an organization that maintains and operates toll roads, bridges and tunnels in the North Texas area.
Introduction. Nuchal translucency (NT) is the assessment of the amount of fluid behind the neck of the fetus, also known as the nuchal fold. An anechoic space is visible and measurable sonographically in all fetuses between the 11th and the 14th week of the pregnancy (Figure 1).he findings of numerous studies suggest that an effective first trimester screening for trisomy 21 can be obtained by the combination of maternal age and measurement of fetal NT [ 4 - 11 ]. At a risk cut-off of 1 in100, the detection rate of trisomy 21 is about 75%, at a false positive rate of about 2%.