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Authors
Verschuuren, A. E. H. http://orcid.org/0000-0002-8954-4850
Postma, I. R.
Riksen, Z. M.
Nott, R. L.
Feijen-de Jong, E. I.
Stekelenburg, J.
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Article History
Received: 24 April 2019
Accepted: 4 May 2020
First Online: 25 May 2020
Ethics approval and consent to participate
: As this is an anonymous retrospective database study there were no specific ethical issues to be considered. By law, this study does not fall under the Medical Research Involving Human Subjects Act in the Netherlands. The study proposal was submitted to the Medical Ethical Committee of the University Medical Center Groningen. The committee has reviewed the proposal and has waived the need for ethics approval.
: All authors read and approved the final manuscript for publication.
: The authors declare that they have no competing interests.
