[1] Vrije Univ Amsterdam Med Ctr, Dept Med Psychol, Boechorststr 7,D-342, NL-1081 BT Amsterdam, Netherlands
[2] EMGO Inst Hlth & Care Res, Amsterdam, Netherlands
[3] Vrije Univ Amsterdam Med Ctr, Dept Pediat, Amsterdam, Netherlands
[4] Diabeter, Ctr Pediat & Adolescent Diabet Care & Res, Rotterdam, Netherlands
[5] Univ Groningen, Univ Med Ctr Groningen, Dept Pediat, Groningen, Netherlands
[6] Haga Hosp, Dept Pediat, Juliana Childrens Hosp, The Hague, Netherlands
[7] Meander Med Ctr, Dept Pediat, Amersfoort, Netherlands
[8] Acad Med Ctr, Dept Med Psychol, Amsterdam, Netherlands