@article{6793609d322b49cf976a07c9b39ffb3f,
title = "Evaluation of first trimester maternal serum and ultrasound screening for Down's syndrome in Eastern and Northern Finland",
keywords = "prenatal diagnosis, Down's syndrome, first trimester trisomy screening, maternal serum screening, HUMAN CHORIONIC-GONADOTROPIN, FETAL NUCHAL TRANSLUCENCY, PLASMA-PROTEIN-A, FREE BETA-HCG, CHROMOSOMAL-ABNORMALITIES, PREGNANCY, TRISOMY-21, BIOCHEMISTRY, ANEUPLOIDY, THICKNESS",
author = "M Niemimaa and M Suonpaa and A Perheentupa and M Seppala and S Heinonen and P Laitinen and A Ruokonen and M Ryynanen",
year = "2001",
month = jun,
doi = "10.1038/sj.ejhg.5200655",
language = "English",
volume = "9",
pages = "404--408",
journal = "European Journal of Human Genetics",
issn = "1018-4813",
publisher = "Nature Publishing Group",
number = "6",
}