Funding for this research was provided by:
Patient-Centered Outcomes Research Institute (PPRN-1306-04811)
Text and Data Mining valid from 2019-01-16
Received: 31 August 2018
Revised: 28 November 2018
Accepted: 27 December 2018
First Online: 16 January 2019
Compliance with ethical standards
: The authors JRC, SG, and WBN receive support from a Patient-Centered Outcomes Research Institute (PCORI) award and ArthritisPower is in part supported by this grant. The authors have no other disclosures to report. We have full control of all primary data and agree to allow the journal to review the data if requested.
: All statements in this manuscript, including its findings and conclusions, are solely those of the authors and do not necessarily represent the views of PCORI, its Board of Governors or Methodology Committee.