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First-trimester ultrasound screening for trisomy 21 based on maternal age,fetal nuchal translucency,and different methods of ductus venosus assessment
Authors:Philipp Wagner  Jiri Sonek  Jessika Klein  Markus Hoopmann  Harald Abele  Karl Oliver Kagan
Institution:1. Department of Obstetrics and Gynaecology, University of Tuebingen, Tuebingen, Germany;2. Fetal Medicine Foundation USA, Dayton, OH, USA

Division of Maternal Fetal Medicine, Wright State University, Dayton, OH, USA

Abstract:
Keywords:
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