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First-trimester serum marker distribution in singleton pregnancies conceived with assisted reproduction |
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| Authors: | M. A. J. Engels M. Kooij R. Schats J. W. R. Twisk M. A. Blankenstein J. M. G. van Vugt |
| Affiliation: | 1. Department of Obstetrics and Gynecology, VU University Medical Center, Amsterdam, The Netherlands;2. Department of Clinical Epidemiology and Biostatistics, VU University Medical Center, Amsterdam, The Netherlands;3. Department of Clinical Chemistry, VU University Medical Center, Amsterdam, The Netherlands |
| Abstract: | |
| Keywords: | assisted reproduction Down syndrome first-trimester screening free β-hCG nuchal translucency thickness PAPP-A |