Funding for this research was provided by:
National Institute of Arthritis and Musculoskeletal and Skin Diseases (UM1AR062800)
National Center for Advancing Translational Sciences (UL1TR000058)
Received: 12 July 2017
Accepted: 23 November 2017
First Online: 1 December 2017
Ethics approval and consent to participate
: All study site institutions’ IRBs approved the study. The coordinating center IRB, Virginia Commonwealth University reference number is IRB HM14326_CR4.
: Not applicable
: The authors declare that they have no competing interests.
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