Lang, Kristin
Akbaba, Sati
Held, Thomas
Kargus, Steffen
Horn, Dominik
Bougatf, Nina
Bernhardt, Denise
Freier, Kolja
Rieken, Stefan
Debus, Jürgen
Adeberg, Sebastian
Article History
Received: 27 September 2018
Accepted: 10 June 2019
First Online: 2 July 2019
Compliance with ethical guidelines
:
: K. Lang, S. Akbaba, T. Held, S. Kargus, D. Horn, N. Bougatf, D. Bernhardt, K. Freier, S. Rieken, J. Debus and S. Adeberg declare that they have no competing interests.
: The Heidelberg Ethics Committee approved this study. Because of the retrospective design, informed consent was not required.