Funding for this research was provided by:
Health & Medical Care Committee of Region Västra Götaland (VGFOUREG-151521)
Article History
Received: 29 March 2018
Accepted: 28 November 2018
First Online: 5 January 2019
Ethics approval and consent to participate
: The study protocol was approved by the Regional Ethical Review Board in Gothenburg, Sweden (reference number: 777–10). Consent to participate was implicit in the returning of a questionnaire.
: Not applicable.
: The authors declare that they have no competing interests.
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