[1] Washington DC VAMC, Washington, DC USA
[2] Georgetown Univ, Washington, DC USA
[3] Howard Univ Hosp, Washington, DC USA
[4] Ctr Rheum Immunol Arthrit, Ft Lauderdale, FL USA
[5] Washington Hosp Ctr, Washington, DC 20010 USA
[6] E Carolina Univ, Sch Med, Greenville, NC USA
[7] John Dingell VAMC, Detroit, MI USA
[8] LSU Med Ctr, New Orleans, LA USA
[9] Univ Arkansas Med Sci, Little Rock, AR 72205 USA
[10] NYU, Sch Med, Div Rheumatol, New York, NY USA
[11] NYU, Hosp Joint Dis, New York, NY USA