Lutz, Bernd http://orcid.org/0000-0003-2599-5836
Trubrich, Angela
Kappe, Thomas
Reichel, Heiko
Bieger, Ralf
Article History
Received: 12 July 2017
First Online: 24 July 2018
Compliance with ethical standards
:
: The authors declare that they have no conflict of interest.
: This article does not contain any studies with human participants or animals performed by any of the authors. Anyway, the study was approved by the ethic committee of the university.
: For this type of study formal consent is not required.