Kiessling, D.
Rennings, C.
Hild, M.
Lappas, A.
Dietlein, T. S.
Roessler, G. F.
Widder, Randolf Alexander http://orcid.org/0000-0001-7487-1501
Funding for this research was provided by:
Universität zu Köln
Article History
Received: 22 March 2021
Accepted: 16 July 2021
First Online: 7 August 2021
Declarations
:
: The authors declare that they have no conflict of interest
: All procedures performed in studies involving human participants were in accordance with the ethical standards of the institutional review board as well as the 1964 Helsinki declaration and its later amendments or comparable ethical standards. The Institutional Review Board (Ethik und Kommission Klinische Studien, Dernbacher Gruppe Katharina Kasper, Germany) approved the study.
: For this type of study (anonymized data, retrospective analysis), formal consent is not required.