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Authors
Gerhardsson, Lars http://orcid.org/0000-0003-0173-8122
Ahlstrand, Christina
Ersson, Per
Jonsson, Per
Gustafsson, Ewa
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Funding
Funding for this research was provided by:
University of Gothenburg
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Article History
Received: 28 August 2020
Accepted: 31 January 2021
First Online: 13 February 2021
Compliance with ethical standards
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: The authors declare that they have no competing interests and no conflicts of interest.
: The study was approved by the ethical committee at the University of Gothenburg. Informed consent was obtained from all individual participants included in the study.All procedures performed in studies involving human participants were in accordance with the ethical standards or the institutional and/or national research committee and with the 1964 Helsinki declaration and its later amendments of comparable ethical standards.
