DOI: 10.1055/s-00000089

Ultraschall in der Medizin - European Journal of Ultrasound

References

Kagan KO, Sroka F, Sonek J. et al.
First trimester screening based on ultrasound and cfDNA vs. first-trimester combined screening – a randomized controlled study.

Ultrasound Obstet Gynecol 2017;
DOI: 10.1002/uog.18905.

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