@article{10829c45c5454292995ce1cfb42318eb,
title = "False-Negative Results in Routine Combined First-Trimester Screening for Down Syndrome in Finland",
keywords = "Down syndrome, combined screening, true positive, false negative, GESTATIONAL-AGE, MATERNAL SERUM, PERFORMANCE, TRISOMY-21, ULTRASOUND, TRIMESTER, RISK, 3123 Gynaecology and paediatrics",
author = "Jaana Marttala and Marja Kaijomaa and Jenni Ranta and Anna Dahlbacka and Pentti Nieminen and Aydin Tekay and Hannaleena Kokkonen and Paivi Laitinen and Jaakko Ignatius and Jarkko Romppanen and Seppo Heinonen and Ilkka Jarvela and Matti Heikkila and Ari Yla-Outinen and Veli-Matti Ulander and Esa H{\"a}m{\"a}l{\"a}inen and Markku Ryynanen",
year = "2012",
doi = "10.1055/s-0031-1285095",
language = "English",
volume = "29",
pages = "211--216",
journal = "American Journal of Perinatology",
issn = "0735-1631",
publisher = "Thieme Medical Publishers, Inc.",
number = "3",
}