Schmitz, Paul
Lüdeck, Stephan
Baumann, Florian
Kretschmer, Rainer
Nerlich, Michael
Kerschbaum, Maximilian
Article History
Received: 30 October 2017
Accepted: 12 June 2018
First Online: 26 June 2018
Compliance with ethical standards
:
: The authors declare that they have no conflict of interest.
: All procedures performed in studies involving human participants were in accordance with the ethical standards of the institutional research committee and with the 1964 Helsinki declaration and its later amendments or comparable ethical standards. Additional informed consent was obtained from all individual participants for whom identifying information is included in this article.