Bouwhuis, S. http://orcid.org/0000-0001-9819-9983
De Wind, A.
De Kruif, A.
Geuskens, G. A.
Van der Beek, A. J.
Bongers, P. M.
Boot, C. R. L.
Article History
Received: 23 October 2017
Accepted: 12 July 2018
First Online: 22 August 2018
Ethics approval and consent to participate
: The Medical Ethics Committee of VU University Medical Center declared that no ethical approval was needed to conduct this study. All participants gave informed consent after having read an information letter regarding this study.
: Not applicable.
: The authors declare that they have no competing interests.
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