Neumann, Philipp-Alexander http://orcid.org/0000-0001-8361-3934
Reischl, Stefan
Berg, Felix
Jäger, Carsten
Friess, Helmut
Reim, Daniel
Ceyhan, Güralp O.
Article History
Accepted: 11 December 2019
First Online: 24 December 2019
Compliance with ethical standards
: The study was approved by the ethical board of the Technical University of Munich (No. 207/18s).
: The authors declare that they have no conflict of interest.