Schuster, Philipp
Schlumberger, Michael
Mayer, Philipp
Eichinger, Martin
Geßlein, Markus
Richter, Jörg
Article History
Received: 12 August 2019
Accepted: 27 November 2019
First Online: 3 December 2019
Compliance with ethical standards
:
: The authors declare they have no conflict of interest.
: The authors received no financial support for the research, authorship, and/or publication of this article.
: All procedures performed in studies involving human participants were in accordance with the ethical standards of the institutional and/or national research committee and with the 1964 Helsinki declaration and its later amendments or comparable ethical standards. The study was approved by the competent Ethical committee.