[Towards a national programme for prenatal screening for Down's syndrome].

@article{Wildschut2005TowardsAN,
  title={[Towards a national programme for prenatal screening for Down's syndrome].},
  author={Hajo I J Wildschut},
  journal={Nederlands tijdschrift voor geneeskunde},
  year={2005},
  volume={149 50},
  pages={2770-2}
}
During the first trimester of pregnancy, the combination test is used for an assessment of the individual risk of Down's syndrome. Several factors have an effect on the variance of the risk estimates. In this context, special attention is given to the interpretation of test results based on centre-specific medians for gestation and those based on published… CONTINUE READING