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Authors
Bigert, Carolina https://orcid.org/0000-0003-1099-753X
Martinsen, Jan Ivar
Gustavsson, Per
Sparén, Pär
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Funding
Funding for this research was provided by:
AFA Försäkring (130104)
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Article History
Received: 5 March 2019
Accepted: 19 August 2019
First Online: 28 August 2019
Compliance with ethical standards
:
: The authors declare that they have no conflict of interest.
: Ethical approval for this study was obtained from The Regional Ethics Committee in Stockholm (Dnr: 2013/2126-31/3 and 2015/787-32). All procedures performed in studies involving human participants were in accordance with the ethical standards of the institutional and/or national research committee and with the 1964 Helsinki Declaration and its later amendments or comparable ethical standards.
