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Maternal serum biochemistry at 11–13+6 weeks in relation to the presence or absence of the fetal nasal bone on ultrasonography in chromosomally abnormal fetuses: an updated analysis of integrated ultrasound and biochemical screening |
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| Authors: | Simona Cicero Kevin Spencer Kyriaki Avgidou Stefano Faiola Kypros H Nicolaides |
| Institution: | Harris Birthright Research Centre for Fetal Medicine, King's College Hospital, Denmark Hill, London, UK |
| Abstract: | |
| Keywords: | prenatal screening chromosomal anomalies Down syndrome OSCAR nuchal translucency nasal bone free β-hCG PAPP-A |