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Authors
Gustafsson, B. M. https://orcid.org/0000-0003-1209-1475
Levander, M. Sund https://orcid.org/0000-0002-1281-885X
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Funding
Funding for this research was provided by:
Linköping University
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Article History
Received: 23 September 2025
Accepted: 26 April 2026
First Online: 17 May 2026
Declarations
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: The present study is part of the ongoing PLUSS study, and has been approved by the Ethics Committee for Human Research at the Faculty of Health Sciences, Linköping University (nos. 2019–04839 and 2021–05266). Informed consent was obtained in written and verbal form from the respondents, i.e. parents, in accordance with the Declaration of Helsinki. The respondents’ names were pseudonymised to ensure confidentiality and anonymity.
: All authors give their permission for publication of the manuscript.
: The authors declare no competing interests.
