Funding for this research was provided by:
The health care subcommittee Region Västra Götaland, Sweden
Article History
Received: 2 February 2018
Accepted: 24 September 2018
First Online: 3 October 2018
Ethics approval and consent to participate
: Ethical consent to perform the study was obtained from the Regional Ethical Review Board, Gothenburg, Reg. no. 840–12. All participants gave their informed written consent to participate.
: Not applicable.
: The authors declare that they have no competing interests.
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