Hoffmann, S. M.
Kappel, D.
Fech, A.
Enderle, M. D.
Weiss, M.
Hahn, M.
Brucker, S. Y.
Kraemer, B.
Article History
Received: 7 September 2018
Accepted: 14 December 2018
First Online: 4 January 2019
Compliance with ethical standards
:
: Markus Enderle is president of research at ERBE GmbH. Andreas Fech is employed engineer at ERBE GmbH. The other authors declare to have no conflict of interest.