[1] Emma Childrens Hosp, Acad Med Ctr, Psychosocial Dept, Amsterdam, Netherlands
[2] Emma Childrens Hosp, Acad Med Ctr, Dept Pediat Hematol Immunol & Infect Dis, Amsterdam, Netherlands
[3] Reade Jan van Breemen Locat, Dept Pediat Rheumatol, Amsterdam, Netherlands
[4] Sint Lucas Andreas Hosp, Dept Pediat, Amsterdam, Netherlands
[5] Vrije Univ Amsterdam Med Ctr, Dept Pediat Rheumatol, Amsterdam, Netherlands