Lindner, Marion http://orcid.org/0000-0002-4689-8659
Nosseir, Olaf
Keller-Pliessnig, Anett
Teigelack, Per
Teufel, Martin
Tagay, Sefik
Article History
Received: 12 December 2017
Accepted: 24 April 2018
First Online: 22 May 2018
Ethics approval and consent to participate
: All patients provided written informed consent. The study was approved by the ethics committee of the Sankt Josef-Hospital Xanten, Germany.
: The authors declare that they have no competing interests.
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