Incorporating DNA Sequencing into Current Prenatal Screening Practice for Down's Syndrome

Abstract excerpt

BACKGROUND: Prenatal screening for Down's syndrome is performed using biochemical and ultrasound markers measured in early pregnancy such as the Integrated test using first and second trimester markers. Recently, DNA sequencing methods have been introduced on free DNA in maternal plasma, yielding a high screening performance. These methods are expensive and there is a test failure rate. We determined the...

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