Funding for this research was provided by:
Deutsche Arthrosehilfe e.V.
Text and Data Mining valid from 2019-12-24
Received: 19 July 2019
Accepted: 13 December 2019
First Online: 24 December 2019
Compliance with ethical standards
: We certify that we have not signed any agreement with commercial interest related to this study, which would, in any way, limit publication of any and all data generated for the study or to delay publication for any reason. Dr. Faschingbauer reports personal fees from Deutsche Arthrosehilfe e.V. during the conduct of the study.
: The authors’ institutional review board approved this study.