DOI: 10.1055/s-00000009

American Journal of Perinatology

References

Ashoor G, Syngelaki A, Poon LCY, Rezende JC, Nicolaides KH.
Fetal fraction in maternal plasma cell-free DNA at 11-13 weeks' gestation: relation to maternal and fetal characteristics.

Ultrasound Obstet Gynecol 2013;
41 (01) 26-32

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