Funding for this research was provided by:
the Research and Development Fund of Region Kronoberg, Växjö, Sweden, (8252)
the Research Council of South Eastern Sweden (FORSS), Linköping, Sweden. (845251)
Received: 2 July 2020
Accepted: 30 September 2020
First Online: 14 October 2020
Ethics approval and consent to participate
: The study was approved by the Regional Ethical Review Board of Linköping University, Linköping (Registration no. M120–07, T89–08). All participants provided written informed consent.
: Not applicable.
: The authors declare that they have no competing interests.