Funding for this research was provided by:
Nederlandse Organisatie voor Wetenschappelijk Onderzoek (464-13-157)
Article History
Received: 21 December 2016
Accepted: 12 December 2017
First Online: 21 December 2017
Compliance with ethical standards
:
: This study was funded by the Netherlands Organization for Scientific Research (NWO) under contract number 464-13-157, this grant was awarded to authors W. B. Verwey and E. H. F. Van Asseldonk.
: Author J. S. Barnhoorn is supported by the aforementioned grant and declares that he has no conflict of interest. Author W. B. Verwey declares that he has no conflict of interest. Author E.H.F. Van Asseldonk declares that he has 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.
: Informed consent was obtained from all individual participants included in the study.