Klaassen, R. A.
Selles, C. A. http://orcid.org/0000-0002-6547-697X
van den Berg, J. W.
Poelman, M. M.
van der Harst, E.
Article History
Received: 12 April 2018
Accepted: 14 September 2018
First Online: 3 December 2018
Ethics approval and consent to participate
: Collection of data was performed with the approval of the Institutional Review Board: “Toetsingscommissie Onderzoek Rotterdam, (TWOR)”.
: Not applicable
: The authors declare that they have no competing interests.
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