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Authors
Dolff, Sebastian http://orcid.org/0000-0001-5549-1706
Scharpenberg, Claudia
Specker, Christof
Kribben, Andreas
Witzke, Oliver
Wilde, Benjamin
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Article History
Received: 2 January 2019
Accepted: 15 July 2019
First Online: 22 July 2019
Ethics approval and consent to participate
: This study has been approved by ethics committee of the medical faculty of the University Duisburg-Essen (05-2803).
: Not applicable.
: The authors declare that they have no competing interests.
