An unwanted pregnancy and language proficiency level are associated with first antenatal visit after the first trimester: Results from a prospective cohort study von Heetkamp, Kirsten M., Peters, Ingrid A., Bertens, Loes C.M., Knapen, Maarten F.C.M.

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Ethnicity and Language Proficiency Differences in the Provision of and Intention to Use Prenatal Screening for Down’s Syndrome and Congenital Anomalies. A Prospective, Non-selected... von Peters, Ingrid A., Heetkamp, Kirsten M., Ursem, Nicolette T. C., Steegers, Eric A. P., Denktaş, Semiha, Knapen, Maarten F. C. M.

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Comparison of risk calculation approaches in a screening programme for Down syndrome von Koster, Maria P.H., Heetkamp, Kirsten M., de Miranda, Esteriek, Schielen, Peter C.J.I.

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