Age‐adjusted ultrasound risk assessment for fetal Down's syndrome during the second trimester: description of the method and analysis of 142 cases
Nyberg, D. A., Luthy, D. A., Resta, R. G., Nyberg, B. C., Williams, M. A.
Published in Ultrasound in obstetrics & gynecology (01.07.1998)
Published in Ultrasound in obstetrics & gynecology (01.07.1998)
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