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Authors
Ramsthaler, Frank
Schlote, J.
Wagner, C.
Fiscina, J.
Kettner, M.
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Article History
Received: 21 September 2015
Accepted: 7 December 2015
First Online: 30 December 2015
Compliance with ethical standards
: Ethic approval was obtained from local ethical committee of the University of Saarland Medical School in Homburg/Saar. Informed consent was obtained from all individual participants included in the study.
: The authors declare that they have no competing interests.
