Received: 5 February 2020
Accepted: 12 July 2020
First Online: 22 July 2020
Change Date: 15 December 2020
Change Type: Correction
Change Details: An amendment to this paper has been published and can be accessed via the original article.
Ethics approval and consent to participate
: This study was carried out in accordance with the Declaration of Helsinki [CitationRef removed]. It was approved by the Norwegian Centre for Research Data on January 28, 2019 (ref. 815,471), and by the Faculty of Health and Sports Sciences at the University of Agder. Written information about the study, including the participants’ legal rights regarding participation and confidentiality, was provided. Participants were assured that it was voluntary to participate in the study and that they were free to withdraw from the study at any time. Completing and returning the questionnaire was considered as consent for participation.
: Not applicable.
: The authors declare that there are no competing interests.