[1] Univ Amsterdam, Acad Med Ctr, Emma Childrens Hosp, Dept Pediat Clin Epidemiol, NL-1105 AZ Amsterdam, Netherlands
[2] Vrije Univ Amsterdam Med Ctr, EMGO Res Inst, Pediat Psychosocial Dept, Amsterdam, Netherlands
[3] Univ Amsterdam, Acad Med Ctr, Emma Childrens Hosp, Dept Pediat, NL-1105 AZ Amsterdam, Netherlands