[1] NYU, Sch Med, Dept Rheumatol & Med, New York, NY 10012 USA
[2] Univ Paris 06, St Antoine Hosp, APHP, Dept Rheumatol, Paris, France
[3] Univ Maryland, Sch Med, Div Rheumatol & Clin Immunol, Baltimore, MD 21201 USA
[4] Univ Hosp, Case Western Reserve Sch Med, Div Rheumatol, Cleveland, OH USA