Merkel, Susanne http://orcid.org/0000-0003-2676-9486
Schellerer, Vera S.
Wein, Axel
Semrau, Sabine
Geppert, Carol
Göhl, Jonas
Hohenberger, Werner
Weber, Klaus
Grützmann, Robert
Article History
Accepted: 8 June 2018
First Online: 18 June 2018
Compliance with ethical standards
:
: The authors declare that they have no conflict of interest.