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Article History

Received: 3 April 2020

Accepted: 7 October 2020

First Online: 13 November 2020

Change Date: 19 December 2020

Change Type: Update

Change Details: An open access funding note has been added in this article.

Ethics approval and consent to participate

: All data were saved and processed in an at first step pseudonymized and later on anonymized form. According to the Ethics Committee of the Faculty of Medicine (University of Regensburg, Regensburg, Germany) no informed consent was therefore necessary for the conduction of the study.

: not applicable.

: The authors have no conflicts of interest, financial or otherwise, related directly or indirectly to the submitted work.