[1] Erasmus Univ, Erasmus Sch Hlth Policy & Management, Rotterdam, Netherlands
[2] Erasmus MC, Sophia Childrens Hosp, Dept Paediat Haematol, Wytemaweg 80, NL-3015 CN Rotterdam, Netherlands
[3] Erasmus MC, Sophia Childrens Hosp, Dept Control & Compliance, Rotterdam, Netherlands
[4] Erasmus MC, Dept Publ Hlth, Rotterdam, Netherlands
[5] Inst Med Technol Assessment, Rotterdam, Netherlands
[6] Leiden Univ, Willem Alexander Childrens Hosp, Med Ctr, Leiden, Netherlands