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    Tanja Schlaikjær Hartwig, Steen Sørensen, Finn Stener Jørgensen, Are there characteristics of the false-negative cases from the first trimester combined screening programme for Down syndrome?, Current Opinion in Obstetrics and Gynecology, 2014, 26, 2, 110

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    Kevin Spencer, Screening for Down syndrome, Scandinavian Journal of Clinical & Laboratory Investigation, 2014, 74, S244, 41

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