DOI:
10.1055/s-00000089
Ultraschall in der Medizin - European Journal of Ultrasound
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References
Hagen A, Entezami M, Gasiorek-Wiens A et al.
The impact of first trimester screening and early fetal anomaly scan on invasive testing rates in women with advanced maternal age.
Ultraschall in Med 2011;
32: 302-306
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