Dietzel, C. T.
Jablonska, K.
Niyazi, M.
Gauer, T.
Ebert, N.
Ostheimer, C.
Krug, D.
Article History
Received: 8 September 2017
Accepted: 8 December 2017
First Online: 18 January 2018
Compliance with ethical guidelines
:
: C.T. Dietzel, K. Jablonska, M. Niyazi, T. Gauer, N. Ebert, C. Ostheimer, and D. Krug 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.