Ceha, C. M. M.
van Wezenbeek, M. R.
Versteegden, D. P. A.
Smulders, J. F.
Nienhuijs, S. W. http://orcid.org/0000-0002-0104-9477
Article History
First Online: 23 July 2018
Compliance with Ethical Standards
: 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.
: The authors declare that they have no conflict of interests.
: Informed consent was obtained from all individual participants included in the study.