Funding for this research was provided by:
Received: 14 January 2021
Accepted: 17 February 2021
First Online: 6 March 2021
Ethics approval and consent to participate
: The BLEND-A study has been approved by The Regional Committees on Health Research Ethics for Southern Denmark (S-201901166G). The ethics approval covers all sites involved in the study. All participants will provide written informed consent before taking part in the study.
: Not applicable.
: The authors declare that they have no competing interests.