Cazana, Ioana Maria http://orcid.org/0000-0001-9237-8868
Böhringer, Daniel
Reinhard, Thomas
Evers, Charlotte
Engesser, Diana
Anton, Alexandra
Lübke, Jan
Article History
Received: 9 June 2020
Accepted: 29 December 2020
First Online: 12 January 2021
Compliance with Ethical Standards
:
: The local ethics committee of the University of Freiburg approved this retrospective observational study (vote no. 288/19). Considering the retrospective nature of the study, no written consent to storing or analyzing data was necessary.
: Not applicable
: Not applicable.
: The authors declare that they have no competing interests.