Funding sources: The Aarhus Birth Cohort has been funded by Tryg Fonden, The Danish National Research Council, and Aarhus University Research Foundation.
Longer time-to-pregnancy in spontaneously conceived pregnancies is associated with lower PAPP-A and free β-hCG in first trimester screening for Down syndrome
Article first published online: 7 JAN 2014
© 2013 John Wiley & Sons, Ltd.
Volume 34, Issue 3, pages 235–240, March 2014
How to Cite
Kirkegaard, I., Uldbjerg, N., Tabor, A. and Henriksen, T. B. (2014), Longer time-to-pregnancy in spontaneously conceived pregnancies is associated with lower PAPP-A and free β-hCG in first trimester screening for Down syndrome. Prenat. Diagn., 34: 235–240. doi: 10.1002/pd.4295
Conflicts of interest: None declared
- Issue published online: 3 MAR 2014
- Article first published online: 7 JAN 2014
- Accepted manuscript online: 12 DEC 2013 03:28PM EST
- Manuscript Accepted: 5 DEC 2013
- Manuscript Revised: 2 DEC 2013
- Manuscript Received: 8 OCT 2013
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