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Authors
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Henriquez, Dacia D. C. A. https://orcid.org/0000-0003-3164-8611
Gillissen, Ada
Smith, Sharissa M.
Cramer, Roos A.
van den Akker, Thomas
Zwart, Joost J.
van Roosmalen, Jos J. M.
Bloemenkamp, Kitty W. M.
van der Bom, Johanna G.
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Article History
Received: 5 October 2018
Accepted: 10 September 2019
First Online: 17 October 2019
Ethics approval and consent to participate
: The study was approved by the medical research ethics committee of the Leiden University Medical Center (P12.273). A waiver for informed consent from the individual patients was granted by this medical research ethics committee. Each participating hospital (Additional file ) provided permission to conduct the study, ethics approval was not required from each hospital. All data were anonymized before being received by the research team. The study was registered in the Netherlands Trial Register (NTR4079).
: Not applicable.
: TA and JR are on the editorial board of BMC Pregnancy and Childbirth. All other authors declare that they have no competing interests.
