[1] Brigham & Womens Hosp, Rheumatol Immunol & Allergy, Boston, MA 02115 USA
[2] Brigham & Womens Hosp, Internal Med Rheumatol, Boston, MA 02115 USA
[3] Boston Childrens Hosp, Div Immunol, Boston, MA USA
[4] Brigham & Womens Hosp, Div Rheumatol Immunol & Allergy, Boston, MA 02115 USA
[5] Harvard Univ, Brigham & Womens Hosp, Sch Med, Dept Med,Div Rheumatol Immunol & Allergy, Boston, MA 02115 USA
[6] Harvard Univ, Brigham & Womens Hosp, Sch Med, Div Rheumatol Immunol & Allergy, Boston, MA 02115 USA