Winding, Trine N.
Andersen, Johan H.
Funding for this research was provided by:
The Danish Working Environment Research Fund. (20130068768/3)
Article History
Received: 2 October 2018
Accepted: 19 June 2019
First Online: 26 June 2019
Ethics approval and consent to participate
: The study was approved by the Danish Data Protection Agency. According to Danish law (Act on Research Ethics Review of Health Research Projects). Available at: ExternalRef removed., questionnaire and register-based studies require neither approval by ethical or scientific committees nor informed consent.
: Not applicable.
: The authors declare that they have no competing interests.