DOI:
10.1055/s-00000089
Ultraschall in der Medizin - European Journal of Ultrasound
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References
Beta J, Akolekar R, Ventura W. et al.
Prediction of spontaneous preterm delivery from maternal factors, obstetric history and placental perfusion and function at 11–13 weeks.
Prenatal diagnosis 2011;
31: 75-83
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