Funding for this research was provided by:
Text and Data Mining valid from 2018-07-09
Received: 19 February 2018
Accepted: 28 June 2018
First Online: 9 July 2018
Ethics approval and consent to participate
: The design of this study is approved by the independent Ethical Committee of the Faculty of Social and Behavioral Sciences of The University of Amsterdam (approval number: 2013-POWL-3308). All participants filled in an informed consent. In the current study, no active participants were children under the age of 16.
: Not applicable.
: The authors declare that they have no competing interests.
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