Funding for this research was provided by:
The Dutch Social Security Institute: the Institute for Employee Benefits Schemes (2001170)
Received: 16 September 2017
Accepted: 8 May 2018
First Online: 24 May 2018
Ethics approval and consent to participate
: The Medical Ethics Committee of the VU University Medical Center gave approval for the study. All procedures performed in this study were in accordance with the ethical standards of this institutional research committee and with the 1964 Helsinki declaration and its later amendments or comparable ethical standards. Verbal informed consent was obtained from all participants (professionals) included in the study.
: Author M.V. is an employee of the Dutch Social Security Institute: the Institute for Employee Benefits Schemes (UWV). Author J.R.A is a shareholder of Evalua Nederland B.V. (ExternalRef removed) and holds a chair in Insurance Medicine on behalf of the Dutch Social Security Institute: the Institute for Employee Benefits Schemes (UWV). All authors declare that they have no conflict of interest in the analysis and interpretation of the data, in writing the paper and in the decision to submit the paper for publication.
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