Funding for this research was provided by:
Municipality of Utrecht
Received: 5 June 2018
Accepted: 4 September 2018
First Online: 20 September 2018
Ethics approval and consent to participate
: All participants signed an informed consent form. The Medical Ethical Committee of the AMC, University of Amsterdam approved the study. Trial registration: 2014-005540-17NL. Registered 22 October 2014, 2014-005540-17NL 20141215 CTA.xml
: Not applicable.
: The authors declare that they have no competing interests.
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