Evaluation of first trimester maternal serum and ultrasound screening for Down's syndrome in Eastern and Northern Finland

Marko Niemimaa, Mikko Suonpää, Antti Perheentupa, M Seppälä, Seppo Heinonen, Päivi Laitinen, Aimo Ruokonen, Markku Ryynänen

European Journal of Human Genetics · 2001 · 38 citations · 22 references

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