Funding for this research was provided by:
The present work was funded by the German-Austrian-Swiss Society for Orthopaedic Traumatologic Sports Medicine (GOTS).
Text and Data Mining valid from 2018-06-22
Received: 29 January 2018
Accepted: 11 June 2018
First Online: 22 June 2018
: The authors declare that there are no competing interests.
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