Wijffels, Mathieu M. E.
Hagenaars, Tjebbe
Latifi, Diba
Van Lieshout, Esther M. M.
Verhofstad, Michael H. J.
Article History
Received: 11 December 2017
Accepted: 29 April 2018
First Online: 21 May 2018
Compliance with ethical standards
:
: All 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. For this type of study formal consent is not required.