Funding for this research was provided by:
Schweizerischer Nationalfonds zur Förderung der Wissenschaftlichen Forschung (P400PS_180730)
Text and Data Mining valid from 2019-11-09
Received: 21 May 2019
Accepted: 27 September 2019
First Online: 9 November 2019
Ethics approval and consent to participate
: This systematic review and NMA does not require ethical approval.
: Not applicable
: The authors declare that they have no competing interests.