Funding for this research was provided by:
This study was supported by research grants from North Zealand Hospital.
Received: 28 October 2022
Accepted: 11 January 2023
First Online: 24 January 2023
: The study was approved by The Danish Data Protection Agency (VD-2018–305, I-Suite 6591).The Danish Regional Committee on Biomedical Research Ethics was notified about this study and the committee decided that ethical approval was unnecessary (Notification Request no. 18021398).The respective administrations of the obstetric departments at the three study sites all approved the study. At inclusion all participants gave written informed consent to participate.All methods were carried out in accordance with the study protocol and other relevant guidelines and regulations.
: Not applicable.
: All authors state explicitly that they have no conflicts of interest in relation to this article.