[1] Univ Washington, Sch Med, Seattle, WA USA
[2] Univ Washington, Seattle Childrens Hosp, Dept Pediat, Div Rheumatol, Seattle, WA USA
[3] George Washington Univ, Childrens Natl Hosp, Sch Med & Hlth Sci, Div Rheumatol, Washington, DC USA
[4] George Washington Univ, Childrens Natl Hosp, Sch Med & Hlth Sci, Dept Pediat, Washington, DC USA
[5] George Washington Univ, Childrens Natl Hosp, Sch Med & Hlth Sci, Dept Dermatol, Washington, DC USA
[6] Univ Washington, Seattle Childrens Hosp, Dept Pediat, Div Dermatol, Seattle, WA USA
[7] Univ Washington, Seattle Childrens Hosp, Dept Pediat, Div Dermatol, 4800 Sand Point Way NE, M-S OC 9-835, Seattle, WA 98105 USA