Simon, F.
Oberhuber, A.
Floros, N.
Düppers, P.
Schelzig, H.
Duran, M.
Article History
First Online: 10 April 2018
Compliance with ethical guidelines
:
: F. Simon, A. Oberhuber, N. Floros, P. Düppers, H. Schelzig and M. Duran declare that they have no competing interests.
: This article does not contain any studies with human participants or animals performed by any of the authors.
: The supplement containing this article is not sponsored by industry.