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Authors
Blomberg, Stefan https://orcid.org/0000-0002-3904-1948
Rosander, Michael https://orcid.org/0000-0002-0202-4650
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Funding
Funding for this research was provided by:
Forskningsrådet om Hälsa, Arbetsliv och Välfärd (2019-01232)
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Article History
Received: 25 April 2019
Accepted: 29 November 2019
First Online: 11 December 2019
Compliance with ethical standards
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: The authors declare that they have no conflicts of interest.
: The project was approved by the Regional Ethical Review Board at Linköping University, Sweden, and have been performed in accordance with the ethical standards as laid down in the 1964 Declaration of Helsinki and its later amendments or comparable ethical standards. All participants gave their informed consent before participating in the study.
