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Article History

Received: 12 October 2020

Accepted: 9 December 2020

First Online: 5 January 2021

Compliance with ethical standards

:

: All authors declare no conflicts of interest.

: In view of the retrospective nature of the study and all the procedures being performed were part of the routine care the Medical Ethics Committee of the Zuyderland Medical Centre approved the study.

: This article does not contain any study with animals performed by any of the authors. All procedures performed involving human participants were in accordance with the ethical standards of the institutional research committee and with the 1964 Helsinki declaration and its later amendments or comparable ethical standards.

: Informed consent was obtained from all individual participants included in the study.