Jahn, Klaus
Freiberger, Ellen
Eskofier, Bjoern M.
Bollheimer, Cornelius
Klucken, Jochen
Article History
Received: 20 February 2019
Accepted: 5 April 2019
First Online: 3 June 2019
Compliance with ethical guidelines
:
: K. Jahn, E. Freiberger, B.M. Eskofier, C. Bollheimer and J. Klucken declare that they have no competing interests.
: For this article no studies with human participants or animals were performed by any of the authors. All studies performed were in accordance with the ethical standards indicated in each case.