Funding for this research was provided by:
Kvalitets- og Efteruddannelsesudvalget (1-30-72-93-11)
The Strategic Research Council Innovation Fund Denmark (10-0922796)
Received: 11 April 2017
Accepted: 24 January 2018
First Online: 17 February 2018
Ethics approval and consent to participate
: The study was approved by the Danish National Committee on Health Research Ethics (journal no. 1–10–72-43-12). All study participants gave written consent to participate in the study.
: All study participants gave written consent for publication.
: The authors declare that they have no competing interests.
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