Funding for this research was provided by:
Forte - Swedish Research Council for Health, Working Life and Welfare (2014-0451)
Text and Data Mining valid from 2018-08-01
Received: 7 January 2018
Accepted: 13 July 2018
First Online: 1 August 2018
: All authors declare that they have no competing interests.
: Informed consent for the data to be used for research purposes was obtained from all individual participants included in the study. The use of the survey in the present study was reviewed and approved by the ethical committee at the Regional Ethical Review Board in Umeå (2015/134-31Ö).
: Not applicable.
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