Received: 29 December 2018
Accepted: 22 August 2019
First Online: 6 September 2019
Ethics approval and consent to participate
: All participants were informed verbally and in writing about the study and assured full anonymity and confidentiality, they were reminded of the possibility to withdraw from the study at any time. To ensure anonymity, all data were safely stored and each participant was assigned a non-identifying code in the report. No participants withdrew from the study. A written consent was obtained from all participants. Study was approved by IRB at Department of Health Science & Technology, Faculty of Medicine, University of Aalborg.
: Not applicable.
: The authors declare that they have no competing interests.