Haversath, Marcel
Busch, André
Jäger, Marcus
Tassemeier, Tjark
Brandenburger, Daniel
Serong, Sebastian
Article History
Received: 20 March 2019
Accepted: 20 May 2019
First Online: 30 May 2019
Ethics approval and consent to participate
: Ethical approval was obtained from the local ethics committee for this retrospective study (Reference: 16-6828-BO).
: Not applicable.
: The authors declare that they have no competing interests.