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Authors
Erdei, Gergő https://orcid.org/0000-0002-5182-8612
Bakacs, Márta
Illés, Éva
Nagy, Barbara
Kaposvári, Csilla
Mák, Erzsébet
Nagy, Eszter Sarkadi
Cserháti, Zoltán
Kovács, Viktória Anna
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Funding
Funding for this research was provided by:
World Health Organisation Regional Office for Europe (Biannual Collaborative Agreement 2016/2017)
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Article History
Received: 6 October 2017
Accepted: 1 May 2018
First Online: 9 May 2018
Ethics approval and consent to participate
: The COSI protocol is in accordance with the International Ethical Guidelines for Biomedical Research Involving Human Subjects []. Study protocol was approved by the National Scientific and Research Ethics Committee of the Medical Research Council (61158–2/2016/EKU) including the opt-out consent approach.An opt-out consent approach was used, so if the parents did not want their children to participate in the study, they would get in touch with the research team. Parents were informed about the survey by an information sheet which were sent home with the children together with the consent form. The consent form had to be returned only if parents did not want their children to participate in the study.
: The authors declare that they have no competing interests.
: Springer Nature remains neutral with regard to jurisdictional claims in published maps and institutional affiliations.
