Funding for this research was provided by:
FORTE: Swedish Research Council for Health, Working Life and Welfare. (FAS 2010-0561)
Article History
Received: 29 April 2019
Accepted: 20 January 2020
First Online: 8 February 2020
Compliance with ethical standards
:
: The authors declare that they have no conflict of interest.
: All procedures performed were in accordance with the ethical approval by the Regional Ethical Review Board in Uppsala-Örebro, Sweden (2011/252) and with the 1964 Helsinki Declaration and its later amendments or comparable ethical standards.
: Informed consent was obtained from all individual participants included in the study.