[1] Indiana Univ Sch Med, Dept Pediat, Sect Pediat Rheumatol, Indianapolis, IN 46202 USA
[2] George Washington Univ, Sch Med, Dept Pediat, Div Pediat Rheumatol, Washington, DC 20052 USA
[3] Ohio State Univ, Dept Med, Columbus, OH 43210 USA
[4] Ohio State Univ, Dept Pediat, Columbus, OH 43210 USA
[5] Ohio State Univ, Dept Adult & Pediat Rheumatol, Columbus, OH 43210 USA
[6] George Washington Univ, Sch Med, Washington, DC USA
[7] Hlth Sci & Arthrit Fdn, Washington, DC USA