Akbaba, Sati
Oelmann-Avendano, Jan T.
Krug, David
Arians, Nathalie
Bostel, Tilman
Hoerner-Rieber, Juliane
Nicolay, Nils H.
Debus, Juergen
Lindel, Katja
Foerster, Robert
Article History
Received: 23 September 2018
Accepted: 29 March 2019
First Online: 17 April 2019
Compliance with ethical guidelines
:
: S. Akbaba, J.T. Oelmann-Avendano, D. Krug, N. Arians, T. Bostel, J. Hoerner-Rieber, N.H. Nicolay, J. Debus, K. Lindel, and R. Foerster declare that they have no competing interests.
: This study was approved by the independent ethical committee of the University of Heidelberg, Germany, on 21st of June 2016 (#S-269/2016) and was conducted with the Helsinki Declaration of 1975 in its most recently amended version. The requirement of informed consent was waived by the ethical committee due to the retrospective nature of this study.