Ha, Thao http://orcid.org/0000-0003-1498-7873
van Roekel, Eeske
Iida, Masumi
Kornienko, Olga
Engels, Rutger C. M. E.
Kuntsche, Emmanuel
Article History
Received: 27 June 2019
Accepted: 1 October 2019
First Online: 16 October 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 with the 1964 Helsinki declaration and its later amendments or comparable ethical standards. The present study was approved by the Medical Ethical Committee Arnhem-Nijmegen, The Netherlands (2009, No. 285).
: Informed consent was obtained from all parents and assent was obtained from all participants included in the study.