Funding for this research was provided by:
the Swedish Research Council for Health, Working Life and Welfare (2014-00936)
Text and Data Mining valid from 2020-04-25
Received: 18 June 2019
Accepted: 13 April 2020
First Online: 25 April 2020
Ethics approval and consent to participate
: The project has been approved by the Regional Ethical Review Board in Gothenburg, Sweden (Ref. No. 125–15). Written informed consent was obtained from all participants.
: Not applicable.
: The authors declare that they have no competing interests.