Funding for this research was provided by:
Karolinska Institutet (K63146023)
Cancerfonden (CAN 2016/615)
Forskningsrådet om Hälsa, Arbetsliv och Välfärd (2014-4689)
Received: 10 February 2020
Accepted: 31 May 2020
First Online: 19 June 2020
Ethics approval and consent to participate
: This study was part of the Fex-Can project, which was provided ethical approval in November 2013 by the Swedish Ethical Review Authority (reference number: 2013/1746–31/4). All participants provided verbal informed consent to participate in this study.
: Consent for publication has been obtained.
: The authors declare that they have no competing interests.