Schlüter, Anke
Weller, Patrick
Kanaan, Oliver
Nel, Ivonne
Heusgen, Lukas
Höing, Benedikt
Haßkamp, Pia
Zander, Sebastian
Mandapathil, Magis
Dominas, Nina
Arnolds, Judith
Stuck, Boris A.
Lang, Stephan
Bankfalvi, Agnes
Brandau, Sven https://orcid.org/0000-0002-2702-4163
Article History
Received: 15 December 2016
Accepted: 6 March 2018
First Online: 9 March 2018
Ethics approval and consent to participate
: The study was approved by the local ethics committee of the Medical Faculty of the University Duisburg-Essen (12–5192-BO) and was performed according to Declaration of Helsinki. Based on the retrospective and anonymous character of the study the approval contained a waiver for written informed consent.
: Not applicable.
: The authors declare that they have no competing interests.
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