Guthoff, Martina
Berger, Kilian
Althaus, Karina
Mühlbacher, Thomas
Bakchoul, Tamam
Steurer, Wolfgang
Nadalin, Silvio
Königsrainer, Alfred
Heyne, Nils
Article History
Received: 10 July 2019
Accepted: 16 March 2020
First Online: 13 May 2020
Ethics approval and consent to participate
: The analysis was approved by the institutional review board of the University of Tübingen (482/2016BO2). As a retrospective analysis, no informed content was necessary.
: Not applicable.
: The authors declare that they have no competing interests.