DOI:
10.1055/s-00000089
Ultraschall in der Medizin - European Journal of Ultrasound
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References
Sonek J, Borenstein M, Dagklis T. et al
Frontomaxillary facial angle in fetuses with trisomy 21 at 11 – 13(6) weeks.
Am J Obstet Gynecol 2007; 196: 271.e1-271.4
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