Funding for this research was provided by:
Universitätsmedizin der Johannes Gutenberg-Universität Mainz
Received: 18 September 2020
Accepted: 12 April 2021
First Online: 29 April 2021
: The ethical review board has been consulted. According to the local laws of Rhineland Palatinate, Germany (Landeskrankenhausgesetz §37) no formal approval and informed consent is necessary for such kind of retrospective analysis. The patient data were de-identified before analysis.
: Not applicable.
: The authors declare that there is no conflict of interest regarding the publication of this paper.