Funding for this research was provided by:
Ragnar Söderbergs stiftelse
Stiftelsen för Strategisk Forskning
Article History
Received: 6 January 2020
Accepted: 24 June 2020
First Online: 8 July 2020
Ethics approval and consent to participate
: The study was approved by the research ethics committee at Lund University (Dnr 2013/84). All participants received information about the study prior to their first visit with the research staff. A written informed consent was acquired upon participation.
: Not applicable.
: The authors declare that they have no competing interests.