DOI:
10.1055/s-00000020
Geburtshilfe und Frauenheilkunde
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References
Schuchter K, Hafner E, Stangl G, Metzenbauer M, Hofinger D, Philipp K.
The first trimester “combined test” for the detection of Down syndrome pregnancies in 4939 unselected pregnancies.
Prenat Diagn 2002; 22: 211-215
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