Funding for this research was provided by:
Text and Data Mining valid from 2018-09-25
Received: 15 January 2018
Accepted: 19 September 2018
First Online: 25 September 2018
Ethics approval and consent to participate
: Following consent from the schools, parents and their children were informed about the intervention and related outcome measurements, and told they could refuse participation at any time. The study methods and consent procedure were approved by the Ethical Review Committee of the Faculty of Psychology and Neuroscience, Maastricht University, the Netherlands [ERCPN-05-09-2012A1].
: The authors declare that they have no competing interests.
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