Screening for trisomies 21, 18 and 13 by maternal age, fetal nuchal translucency, fetal heart rate, free -hCG and pregnancy-associated plasma protein-A

Author: Kagan Karl O.   Wright Dave   Valencia Catalina   Maiz Nerea   Nicolaides Kypros H.  

Publisher: Oxford University Press

ISSN: 1460-2350

Source: Human Reproduction, Vol.23, Iss.9, 2008-09, pp. : 1968-1975

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