DOI: 10.1055/s-00000020

Geburtshilfe und Frauenheilkunde

References

Gasiorek-Wiens A, Tercanli S, Kozlowski P, Kossakiewicz A, Minderer S, Meyberg H. et al.
Screening for trisomy 21 by fetal nuchal translucency and maternal age: a multicenter project in Germany, Austria and Switzerland. 
Ultrasound Obstet Gynecol 2001; 18: 645-648  

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