Ozimek, Tomasz
Cordes, Jens
Gilbert, Nils
Hupe, Marie C.
Wiessmeyer, Judith R.
Schneider, Michael H.
Merseburger, Axel S.
Kramer, Mario Wolfgang
Article History
Received: 2 July 2019
Accepted: 13 October 2019
First Online: 28 October 2019
Compliance with ethical standards
:
: The authors declare that they have no conflict of interest.
: Ethical committee approval was obtained for this retrospective study.
: No.
: Not obtained, due to the retrospective character of the study.