de Graaf, Max W.
Reininga, Inge H. F.
Wendt, Klaus W.
Heineman, Erik
El Moumni, Mostafa
Article History
Accepted: 25 October 2018
First Online: 30 October 2018
Compliance with ethical standards
:
: All authors declare that they have no conflicts 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. The methods employed in this study have been reviewed by the local Institutional Review Board, and waived further need for approval (METc2012.104).
: Informed consent was obtained from all individual participants included in the study.