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Optimal nuchal skin-fold thresholds based on gestational age for prenatal detection of Down syndrome

  • Diana L. Gray
    Correspondence
    Reprint requests: Diana L. Gray, MD, Department of Obstetrics and Gynecology, The Jewish Hospital of St. Louis, 216 S. Kingshighway, St. Louis, MO 63110.
    Affiliations
    Division of Genetics and Ultrasound, Department of Obstetrics and Gynecology, Washington University School of Medicine St. Louis, Missouri, USA.
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  • James P. Crane
    Affiliations
    Division of Genetics and Ultrasound, Department of Obstetrics and Gynecology, Washington University School of Medicine St. Louis, Missouri, USA.
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