[1] Univ Amsterdam, Acad Med Ctr, Pediat Surg Ctr Amsterdam, Emma Childrens Hosp, NL-1100 DD Amsterdam, Netherlands
[2] Univ Amsterdam, Acad Med Ctr, Dept Paediat Oncol, Emma Childrens Hosp, NL-1100 DD Amsterdam, Netherlands
[3] Erasmus MC Sophia Childrens Hosp, Dept Paediat Oncol, Rotterdam, Netherlands