Funding for this research was provided by:
Svenska Läkaresällskapet (SLS50514, SLS905581)
Received: 12 October 2020
Accepted: 19 January 2021
First Online: 15 February 2021
Ethics approval and consent to participate
: Ethical permit for this study was required and approved by the Swedish Ethical Review Authority, region Stockholm (Dnr: 2012/1347–31/1, 2012/1347–31/2, 2013/632–32, 2014/408–32, 2016/57–32, 2018/446–32, 2019/013–10). Each participant’s right to, at any time, discontinue participation was emphasized in all oral and written information as well as when informed consent was obtained.
: The data is presented so that no individual study participants can be identified.
: The authors declare no conflict of interest.