Funding for this research was provided by:
Forskningsrådet om Hälsa, Arbetsliv och Välfärd (2007-1762)
Received: 16 November 2020
Accepted: 25 May 2021
First Online: 2 July 2021
: The study was carried out in accordance with the Declaration of Helsinki. Ethical approval for the project was approved by the Regional Ethical Review Board in Stockholm, Sweden (DNR 2007/762 − 31 and 2016/1533-32).
: Not applicable.
: The authors declare no conflicts of interest.