[1] E Carolina Univ, Dept Psychol, Greenville, NC 27858 USA
[2] Univ N Carolina, Dept Psychol, Chapel Hill, NC USA
[3] Univ Washington, Seattle, WA 98195 USA
[4] Seattle Childrens Res Inst, Seattle, WA USA
[5] Duke Univ, Med Ctr, Dept Pediat, Div Pediat Rheumatol, Durham, NC 27710 USA