DOI:
10.1055/s-00000142
Frauenheilkunde up2date
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References
Maiz N, Valencia C, Kagan KO. et al.
Ductus venosus Doppler in screening for trisomies 21, 18 and 13 and Turner syndrome at 11–13 weeks of gestation.
Ultrasound Obstet Gynecol 2009;
33: 512-517
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