Torsello, G.
Czerny, M.
Grundmann, R. T.
Krankenberg, H.
Nikol, S.
Puls, R.
Raddatz, A.
Schelzig, H.
Schmieder, R.
Zahn, R.
Article History
First Online: 3 December 2018
Compliance with ethical guidelines
:
: G. Torsello, M. Czerny, R.T. Grundmann, H. Krankenberg, S. Nikol, R. Puls, A. Raddatz, H. Schelzig, R. Schmieder and R. Zahn 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.