[1] Univ Calif San Francisco, Div Rheumatol, Pediat, San Francisco, CA 94143 USA
[2] Cohen Childrens Med Ctr New York, New Hyde Pk, NY USA
[3] Texas Scottish Rite Hosp Children, Dallas, TX 75219 USA
[4] Ohio State Univ, Pediat & Adult Rheumatol, Columbus, OH 43210 USA
[5] Cincinnati Childrens Hosp Med Ctr, Pediat Rheumatol, Cincinnati, OH 45229 USA
[6] Stanford Univ, Pediat Rheumatol, Palo Alto, CA 94304 USA
[7] Univ Chicago Hosp, Pediat Rheumatol, Chicago, IL 60637 USA
[8] Emory Univ, Sch Med, Pediat Rheumatol, Atlanta, GA USA
[9] Duke Med Ctr, Pediat, Durham, NC USA
[10] Northwestern Univ, Ann & Robert H Lurie Childrens Hosp Chicago, Feinberg Sch Med, Div Rheumatol,Dept Pediat, Chicago, IL 60611 USA
[11] Univ Calif San Francisco, Dept Pediat, Div Rheumatol, San Francisco, CA USA