Funding for this research was provided by:
Swedish Research Council for Health, Working Life and Welfare (2013-2291, 2017-01456)
Article History
Received: 3 April 2020
Accepted: 29 September 2020
First Online: 8 October 2020
Ethics approval and consent to participate
: Ethical approval for the HEARTS study was granted from the regional ethical approval board of Gothenburg at University of Gothenburg (Dnr: 970–14). All subjects gave written informed consent in accordance with the Declaration of Helsinki.
: Not applicable.
: The authors declare that they have no competing interests.