Funding for this research was provided by:
Deutsche Arthrose-Hilfe e.V.
Text and Data Mining valid from 2019-08-13
Received: 18 April 2019
Accepted: 5 August 2019
First Online: 13 August 2019
Ethics approval and consent to participate
: Institution and registration number will follow after acceptance.
: Not applicable
: The authors declare that they have no competing interests.