Article History
Received: 29 November 2017
Accepted: 28 December 2018
First Online: 8 January 2019
Ethics approval and consent to participate
: All participants gave verbal consent to participate following oral and written information. Ethical approval was applied for at the Biomedical Research Committee in the Capital Region of Denmark. However, the need for approval was waived (H-4-2011-122). Accordingly, written informed consent was not mandated (as per national regulations).
: Not applicable
: The authors declare that they have no competing interests.
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