Kühn, Florian
Janisch, Florian
Schwandner, Frank
Gock, Michael
Wedermann, Nicole
Witte, Maria
Klar, Ernst
Schiffmann, Leif
Article History
First Online: 21 January 2020
Compliance with ethical standards
:
: The authors declare that they have no competing interest.
: Not applicable.
: According to local ethics committee (Rostock University), no formal ethics approval was required in this retrospective study.
: Written informed consent forms about the procedures were obtained from all patients.