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7. The significance of maternal blood pregnancy-associated plasma protein A (PAPP-A) and free beta-subunit of human chorionic gonadotropin (β-hCG) levels for the risk assessment of fetal trisomy 18 during the first prenatal testing between 11 and 13+6 weeks of pregnancy. Ziolkowska K; Tobola-Wrobel K; Dydowicz P; Zurawski S; Pietryga M; Wysocka E Ginekol Pol; 2020; 91(12):748-754. PubMed ID: 33447994 [TBL] [Abstract][Full Text] [Related]
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