Funding for this research was provided by:
Stiftelsen för Strategisk Forskning (xx)
Medicinska Forskningsrådet (XX)
Received: 4 September 2019
Accepted: 13 November 2019
First Online: 27 November 2019
Ethics approval and consent to participate
: The study was approved by the Regional Ethics Committee in Uppsala (Dir. 2012/099).
: Not applicable.
: The authors declare that they have no competing interests.