De Looze, Margaretha
van Dorsselaer, S.
Stevens, G. W. J. M.
Boniel-Nissim, M.
Vieno, A.
Van den Eijnden, R. J. J. M.
Article History
Received: 8 May 2018
Revised: 6 November 2018
Accepted: 23 November 2018
First Online: 17 December 2018
Compliance with ethical standards
:
: The authors declare that they have no conflict of interest.
: Each country that participated in the HBSC study obtained approval to conduct the survey from their ethics review board or equivalent regulatory body.
: Participation was voluntary, and informed consent (active or passive) was sought from school administrators, parents and children as per national human subject requirements.