Zahn, Robert Karl
Renner, Lisa
Perka, Carsten
Hommel, Hagen
Article History
Received: 12 March 2018
Accepted: 6 July 2018
First Online: 10 July 2018
Compliance with ethical standards
:
: The authors have no conflicts of interest.
: This study was approved by the competent ethical committee (AS 17 (bB)/2015).
: A written informed consent was obtained from all patients.