1. Quality of Life Department, European Organization for Research and Treatment of CancerBrussels Belgium
2. Department of Neurology and Brain Tumor Center AmsterdamVU University Medical CenterAmsterdam the Netherlands
3. Epidemiological Methods Section, Surveillance and Response Support Unit, European Center for Disease Prevention and ControlStockholm Sweden
4. Princess Margaret Cancer CentreUniversity of TorontoToronto Ontario Canada
5. Canadian Cancer Trials GroupKingston Ontario Canada
6. Queen's UniversityKingston Ontario Canada
7. School of Population and Public HealthUniversity of British ColumbiaVancouver British Columbia Canada
8. Cancer Centre of Southeastern Ontario, Kingston General HospitalKingston Ontario Canada
9. Child and Adolescent PsychiatryUniversity MagdeburgMagdeburg Germany
10. Obstetrics and GynecologyMedical University GrazGraz Austria
11. Center for Health ManagementDuke University School of MedicineDurham North Carolina
12. Department of Population Health SciencesDuke University School of MedicineDurham North Carolina
13. Department of PediatricsDuke University School of MedicineDurham North Carolina
14. Department of NeurologyLeiden University Medical CenterLeiden the Netherlands
15. Neurology, Haaglanden Medical Centerthe Hague the Netherlands
16. Department of NeurologyAcademic Medical CenterAmsterdam the Netherlands