[1] Univ Calif Los Angeles, Dept Med, Div Rheumatol, Los Angeles, CA 90095 USA
[2] David Geffen Sch Med, Los Angeles, CA USA
[3] Lund Univ, Dept Rheumatol, Lund, Sweden
[4] Ghent Univ Hosp, Dept Internal Med, Ghent, Belgium
[5] Ghent Univ Hosp, Dept Rheumatol, Ghent, Belgium
[6] VIB Inflammat Res Ctr, Unit Mol Immunol & Inflammat, Ghent, Belgium
[7] Univ Calif Los Angeles, Dept Med, Div Rheumatol, Los Angeles, CA 90095 USA