Verwey, Willem B. http://orcid.org/0000-0003-3994-8854
Article History
Received: 13 May 2019
Accepted: 2 December 2019
First Online: 6 December 2019
Compliance with ethical standards
:
: Author W.B. Verwey 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 Declaration of Helsinki and its later amendments or comparable ethical standards.
: Informed consent was obtained from all individual participants included in the study.