Funding for this research was provided by:
Private Universität Witten/Herdecke gGmbH
Received: 9 January 2021
Accepted: 9 June 2021
First Online: 14 June 2021
: The study was approved from the Ethics Committee of University Witten/Herdecke and was performed in accordance with institutional guidelines. Written informed consent was waived for retrospective study participation.
: Not applicable.
: The authors declare that they have no competing interests.