[1] Childrens Mercy Kansas City, Kansas City, MO USA
[2] Univ Missouri Kansas City, Sch Med, Kansas City, MO USA
[3] Univ Kansas, Sch Med, Kansas City, KS USA
[4] Ctr Childrens Hlth Lifestyles & Nutr, Kansas City, MO USA
[5] Childrens Mercy Kansas City, Dept Pediat, Div Rheumatol, 2401 Gillham Rd, Kansas City, MO 64108 USA