Received: 8 December 2019
Accepted: 4 January 2021
First Online: 13 January 2021
Ethical approval and consent to participate
: The Danish Patient Safety Authority (J. No. 3-3013-2015/1) and the Danish Data Protection Agency (J. No. 2016-41-4953) granted the permission to access and use the medical records described in the study. Further ethical approval was deemed unnecessary according to national regulations.
: Not applicable.
: The authors declare that they have no competing interests.