Demircioğlu, Aydin http://orcid.org/0000-0003-0349-5590
Funding for this research was provided by:
Universitätsklinikum Essen
Article History
Received: 11 December 2021
Accepted: 3 February 2022
First Online: 24 February 2022
Declarations
:
: This study is retrospective in nature and uses only publicly available datasets. The local Ethics Committee (Ethik-Kommission, Medizinische Fakultät der Universität Duisburg-Essen, Germany) waived therefore the need for an ethics approval.
: Not applicable.
: The authors declare that they have no competing interests.