van de Laar, Arnold W.
van Rijswijk, A. S.
Kakar, H.
Bruin, S. C.
Article History
First Online: 27 February 2018
Compliance with Ethical Standards
:
: Informed consent was obtained from all individual participants included in the study. The Institutional Review Board approved this study. For this type of study (retrospective studies), formal consent is not required.
: The authors declare that they have no conflict of interest.