Are nuchal translucency, pregnancy associated plasma protein-A or free--human chorionic gonadotropin depending on maternal age? A multicenter study of 8,116 pregnancies

Author: Schmidt Peter   Pruggmayer Michael   Steinborn Andrea   Schippert Cordula   Staboulidou Ismini   Hillemanns Peter   Scharf Alexander  

Publisher: Springer Publishing Company

ISSN: 0932-0067

Source: Archives of Gynecology and Obstetrics, Vol.276, Iss.3, 2007-09, pp. : 259-262

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