Funding for this research was provided by:
Universitätsklinikum Düsseldorf. Anstalt öffentlichen Rechts
Received: 21 May 2021
Accepted: 2 September 2021
First Online: 13 September 2021
: The authors indicate no potential conflicts of interest.
: Ethical approval was waived by the Local Ethics Committee of University of Düsseldorf (Heinrich-Heine University Duesseldorf) in view of the retrospective nature of the study, and all the procedures being performed were part of the routine care. This study was performed in line with the principles of the Declaration of Helsinki.
: All patients have signed a written informed consent form and gave their approval for this study. All data presented have been anonymized.
: We confirm that the manuscript has been read and approved by all named authors and that there are no other persons who satisfied the criteria for authorship but are not listed.