Received: 22 September 2020
Accepted: 24 August 2021
First Online: 10 September 2021
: The study followed the Declaration of Helsinki on medical protocol and ethics. Given the retrospective nature of this study, ethical approval of the study was waived by the Ethics Committee of the Medical University of Innsbruck. Informed consent was obtained from each participant included in the study.
: Not applicable.
: The authors declare that they have no competing interests.