Burchard, Rene https://orcid.org/0000-0001-6113-3577
Massa, Robin
Soost, Christian
Richter, Wolfgang
Dietrich, Gerhard
Ohrndorf, Arne
Christ, Hans-Jürgen
Fritzen, Claus-Peter
Graw, Jan Adriaan
Schmitt, Jan
Funding for this research was provided by:
Gesellschaft für Prävention und Rehabilitation im Sport e.V.
Article History
Received: 29 November 2017
Accepted: 3 July 2018
First Online: 11 July 2018
Ethics approval and consent to participate
: Not applicable.
: Not applicable.
: The authors declare that they have no competing interests.
: Springer Nature remains neutral with regard to jurisdictional claims in published maps and institutional affiliations.