Enders, C.
Lang, G. E.
Mayer, B.
Werner, J. U.
Funding for this research was provided by:
Universität Ulm
Article History
Received: 16 July 2022
Accepted: 9 December 2022
First Online: 22 December 2022
Declarations
:
: This retrospective study was approved by the local ethic committee of Ulm University (application number 395/15) and conducted in accordance with the Declaration of Helsinki. Due to the retrospective nature of the study the need for informed consent was waived by the ethics committee of Ulm University. No experimental procedures were performed.
: Not applicable.
: The authors have no competing interests.