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Fetal facial profile markers of Down syndrome in the second and third trimesters of pregnancy - Vos - 2015 - Ultrasound in Obstetrics & Gynecology - Wiley Online Library
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A Review on Techniques for Computer Aided Diagnosis of Soft Markers for Detection of Down Syndrome in Ultrasound Fetal Images | Biomedical and Pharmacology Journal
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Helping you understand scary (but often harmless) pregnancy ultrasound findings | Your Pregnancy Matters | UT Southwestern Medical Center
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Ultrasound images of a normal fetus (a) and a fetus with trisomy 21 (b)... | Download Scientific Diagram
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