Article History
Received: 14 October 2020
Accepted: 24 December 2020
First Online: 1 February 2021
Compliance with ethical standards
:
: All authors declare that they have no conflict of interest.
: The Ethics Committee of the City of Vienna waived the need for ethics approval and the need to obtain consent for the collection, analysis and publication of the retrospectively obtained and anonymized data for this non-interventional study.