DOI: 10.1055/s-00000089

Ultraschall in der Medizin - European Journal of Ultrasound

References

Merz E, Thode C, Alkier A. et al.
A new approach to calculating the risk of chromosomal abnormalities with first-trimester screening data. 
Ultraschall in Med 2008; 29: 639-645  

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