Funding for this research was provided by:
Norsk Sykepleierforbund (14/0023)
Inland Norway University of Applied Sciences (2013/1565)
Oslo Metropolian University
Received: 2 November 2017
Accepted: 4 June 2018
First Online: 28 June 2018
Ethics approval and consent to participate
: This study was approved by the Norwegian Social Science Data Service (NSD), ref. 38,917. Subject participation was voluntary, and questionnaires were completed anonymously. As data were collected using telephone interviews, verbal informed consent was obtained from the participants. This procedure was approved by the NSD.
: The authors declare that they have no competing interests.
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