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Authors
Savelieva, Kateryna http://orcid.org/0000-0002-4662-9707
Marttila, Tero
Lampi, Jussi
Ung-Lanki, Sari
Elovainio, Marko
Pekkanen, Juha
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Funding
Funding for this research was provided by:
Sosiaali- ja Terveysministeriö (NA)
Juho Vainion Säätiö (NA)
Yrjö Jahnsson (6988)
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Article History
Received: 9 October 2019
Accepted: 18 December 2019
First Online: 27 December 2019
Ethics approval and consent to participate
: The research plans were approved by the Institutional Review Board of the National Institute for Health and Welfare (THL), Finland (THL/1370/6.02.01/2016). Participation in the survey was voluntary, and parents could refuse the use of their children’s information in the survey.
: Not applicable.
: The authors declare that they have no competing interests.
