DOI: 10.1055/s-00000089

Ultraschall in der Medizin - European Journal of Ultrasound

References

Molina F, Persico N, Borestein M. et al
Frontomaxilary facial angle in trisomy 21 fetuses at 16 – 24 weeks of gestation. 
Ultrasound Obstetr Gynecol 2008; 31: 384-387  

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