Muschalik, Carolin http://orcid.org/0000-0002-7016-5674
Elfeddali, Iman
Candel, Math J. J. M.
de Vries, Hein
Article History
Received: 15 September 2017
Accepted: 2 April 2018
First Online: 25 April 2018
Ethics approval and consent to participate
: Ethical approval was obtained from the Medical Ethics Committee of the Atrium Hospital in Heerlen, The Netherlands (15-N-169). All participants gave written informed consent prior to participation.
: The authors declare that they have no competing interests.
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