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Article History

Received: 6 September 2020

Revised: 4 January 2021

Accepted: 18 January 2021

First Online: 6 February 2021

Compliance with ethical standards

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: The authors have no conflicts of interest to declare that are relevant to the content of this article.

: Approved by EC UZ Leuven. All procedures performed in studies involving human participants were in accordance with the ethical standards of the institutional and/or national research committee and with the 1964 Helsinki declaration and its later amendments or comparable ethical standards. This article does not contain any studies with animals performed by any of the authors. Informed consent was obtained from all individual participants included in the study.

: The authors affirm that human research participants provided informed consent for publication.