Funding for this research was provided by:
Västerbotten Läns Landsting
Received: 29 September 2017
Accepted: 27 August 2019
First Online: 4 September 2019
Ethics approval and consent to participate
: Participation in the project was voluntary and the interviewees had the possibility to withdraw from participation at any time. Written consent was obtained before participation in the study. The project was approved by the regional ethical review board in Umeå (Ref.No. 2016/50–31).
: All authors (JVK, AL, OS and MF) declare that they have no competing interests.