Funding for this research was provided by:
Forskningsrådet om Hälsa, Arbetsliv och Välfärd (2011-0236)
Received: 20 March 2020
Accepted: 16 June 2020
First Online: 26 June 2020
Ethics approval and consent to participate
: The Regional Ethical Review Board in Lund, Sweden (Reg. No. 2012/298) approved the study protocol and all informant gave written informed consent prior to the study.
: Not applicable.
: The authors declare that they have no competing interests.