Funding for this research was provided by:
Received: 11 November 2020
Accepted: 20 January 2021
First Online: 2 February 2021
Ethics approval and consent of participate
: The study was approved by the Medical Research Ethical Committee and the institutional review board of the Linköping University Hospital. Participants gave written informed consent.
: Not applicable.
: The authors declare that they have no competing interests.