,
Hager, Sven
Eberbach, Helge
Lefering, Rolf
Hammer, Thorsten O.
Kubosch, David
Jäger, Christoph
Südkamp, Norbert P.
Bayer, Jörg https://orcid.org/0000-0001-5446-6840
Article History
Received: 8 April 2020
Accepted: 14 May 2020
First Online: 24 May 2020
Ethics approval and consent to participate
: The study was approved by the University of Freiburg Ethics Committee (EK 287/19) and informed consent was waived.
: Not applicable.
: The authors declare that they have no competing interests.