Verkuyten, Maykel http://orcid.org/0000-0003-0137-1527
Thijs, Jochem
Article History
Received: 22 January 2019
Accepted: 25 March 2019
First Online: 6 April 2019
Compliance with Ethical Standards
:
: The authors declare that they have no conflict of interest.
: All procedures performed in studies involving human participants were in accordance with the ethical standards of the institutional and/or national research committee and with the 1964 Helsinki declaration and its later amendments or comparable ethical standards.
: Passive parental consent was obtained, and all students included in the study participated voluntarily.