Combined ultrasound and biochemical screening for Down's Syndrome in the first trimester: a Scottish multicentre study

Autor: Crossley, Jennifer A, Aitken, David A *, Cameron, Alan D, McBride, Elizabeth, Connor, J.Michael
Zdroj: In BJOG: An International Journal of Obstetrics and Gynaecology 2002 109(6):667-676
Databáze: ScienceDirect
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