[1] Univ Med Ctr Rotterdam, Erasmus MC Canc Inst, Dept Neurooncol, Rotterdam, Netherlands
[2] Med Spectrum Twente, Dept Neurol, Enschede, Netherlands
[3] Univ Med Ctr Groningen, Dept Hematol, Groningen, Netherlands
[4] Netherlands Comprehens Canc Org IKNL, Dept Registrat, Utrecht, Netherlands
[5] Univ Med Ctr Rotterdam, Erasmus MC Canc Inst, Dept Hematol, Rotterdam, Netherlands
[6] Netherlands Comprehens Canc Org IKNL, Dept Res & Dev, Utrecht, Netherlands
[7] Univ Med Ctr Rotterdam, Erasmus MC Canc Inst, Dept Publ Hlth, Rotterdam, Netherlands