[1] Hackensack Univ, Med Ctr, Joseph M Sanzari Childrens Hosp, Pediat, Hackensack, NJ USA
[2] Univ Pittsburgh, Med Ctr, Pediat Rheumatol, Pittsburgh, PA USA
[3] Univ Iowa, Childrens Hosp, Pediat Rheumatol, Iowa City, IA USA
[4] Univ Iowa, Dept Pediat Rheum, Iowa City, IA USA
[5] Duke Univ, Med Ctr, Pediat Rheumatol, Durham, NC USA
[6] Childrens Mercy Kansas City, Rheumatol, Kansas City, MO USA
[7] Boston Childrens Hosp, Rheumatol, Boston, MA USA
[8] Childrens Mercy Hosp, Pediat Rheumatolgy, Kansas City, MO 64108 USA
[9] Boston Childrens Hosp, Div Immunol, Program Rheumatol, Boston, MA USA
[10] Harvard Univ, Brigham & Womens Hosp, Sch Med, Dept Dermatol, Boston, MA 02115 USA
[11] Texas Scottish Rite Hosp Crippled Children, Pediat Rheumatol, Dallas, TX USA
[12] Mayo Clin, Rheumatol, Rochester, MN USA
[13] Hosp Sick Children, Dermatol, Toronto, ON M5G 1X8, Canada
[14] Hosp Sick Children, Rheumatol, Toronto, ON M5G 1X8, Canada
[15] Nationwide Childrens Hosp, Pediat Rheumatol OSU, Columbus, OH USA
[16] Ohio State Univ, Nationwide Childrens Hosp, Pediat Rheumatol, Columbus, OH 43210 USA
[17] Hosp Sick Children, Div Rheumatol, Toronto, ON M5G 1X8, Canada