Carl, Fabian
Doll, Christian
Voss, Jan Oliver
Neumann, Konrad
Koerdt, Steffen
Adolphs, Nicolai
Nahles, Susanne
Heiland, Max
Raguse, Jan-Dirk
Article History
Received: 13 February 2018
Accepted: 15 January 2019
First Online: 23 January 2019
Compliance with ethical standards
:
: The authors declare that they have no conflict of interest.
: All procedures performed in studies involving human participants were in accordance with the ethical standards of the institutional and/or national research committee and with the 1964 Helsinki declaration and its later amendments or comparable ethical standards.
: Due to the retrospective and anonymous nature of the present study, informed consent was waived. The Ethics Committee of the Faculty of Medicine Charité, Universitätsmedizin Berlin approved this study.