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Authors
Jugert, Philipp
Pink, Sebastian
Fleischmann, Fenella https://orcid.org/0000-0001-5121-885X
Leszczensky, Lars
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Article History
Received: 6 February 2020
Accepted: 27 April 2020
First Online: 13 May 2020
Compliance with Ethical Standards
:
: The authors declare that they have no conflict of interest.
: The study was performed in line with the principles of the Declaration of Helsinki. All procedures performed in this study were in accordance with the ethical standards of the institution that carried out the research project.
: Informed consent was obtained from all individual participants included in the study, their parents and principals of all schools.
