Schüttler, Karl-Friedrich
Götschenberg, A.
Klasan, A.
Stein, T.
Pehl, A.
Roessler, P. P.
Figiel, J.
Heyse, T. J.
Efe, T.
Article History
Received: 26 May 2018
First Online: 18 August 2018
Compliance with ethical standards
:
: The authors declare that they have no conflict of interest.
: Informed consent was obtained from all individual participants included in the study.