DOI: 10.1055/s-00000009

American Journal of Perinatology

References

Snijders RJ, Noble P, Sebire N, Souka A, Nicolaides KH. ; Fetal Medicine Foundation First Trimester Screening Group.
UK multicentre project on assessment of risk of trisomy 21 by maternal age and fetal nuchal-translucency thickness at 10-14 weeks of gestation.

Lancet 1998;
352 (9125): 343-346

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