van Vuuren, A.
Verhoeven, L.
van den Berkmortel, F. http://orcid.org/0000-0002-2400-0692
van de Wouw, Y.
Belgers, E.
Vogelaar, F. J.
Janssen-Heijnen, M. L.
Article History
Received: 19 February 2018
Accepted: 12 May 2018
First Online: 28 May 2018
Compliance with ethical standards
:
: The 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.