1. Consortium for Biomedical Research in Epidemiology and Public Health (CIBERESP), 28029 Madrid, Spain
2. Department of Epidemiology, Murcia Regional Health Authority, 30071 Murcia, Spain
3. Department of Epidemiology, Regional Health Council, IMIB-Arrixaca, Murcia University, El Palmar, 30120 Murcia, Spain
4. Spanish Registry of Childhood Tumours (RETI-SEHOP), University of Valencia, Faculty of Medicine, 46010 Valencia, Spain
5. Neuro-Oncology Unit, Paediatric Cancer Centre, Sant Joan de Déu Hospital, Esplugues de Llobregat, 08950 Barcelona, Spain
6. Epidemiology Unit and Girona Cancer Registry, Oncology Co-Ordination Plan, Catalonian Oncology Institute, 17004 Girona, Spain
7. Josep Trueta Girona Biomedical Research Institute (IDIBGI), Salt, 17190 Girona, Spain
8. Statistics, Econometrics and Health Research Group (GRECS), University of Girona, 17004 Girona, Spain
9. Josep Carreras Leukaemia Research Institute, 08916 Badalona, Spain
10. Castile-La Mancha Cancer Registry, Regional Health Authority, 45071 Toledo, Spain
11. Asturias Cancer Registry, Public Health Directorate, 33006 Oviedo Asturias, Spain
12. Valencian Regional Childhood Cancer Registry, Non-Communicable Disease Epidemiology and Surveillance Department, General Subdirectorate of Epidemiology and Health Surveillance, General Directorate of Public Health and Addictions, Regional Public Health Authority, Valencian Regional Authority, 46010 Valencia, Spain
13. Basque Country Cancer Registry, Health Department, Basque Country Regional Authority, 01010 Vitoria-Gasteiz, Spain
14. Andalusian School of Public Health (EASP), 18011 Granada, Spain
15. Granada Bio-Health Research Institute, 18012 Granada, Spain
16. Mallorca Cancer Registry, General Directorate of Public Health and Participation, Balearic Isles Health Research Institute (IdISBa), 07010 Palma de Mallorca, Spain
17. Navarre Public Health Institute, 31003 Pamplona, Spain
18. IdiSNA, Navarre Health Research Institute, 31008 Pamplona, Spain
19. Tarragona Cancer Registry, Cancer Epidemiology and Prevention Service, Sant Joan de Reus University Teaching Hospital, 43204 Reus, Spain
20. Pere Virgili Health Research Institute (IISPV), 43204 Reus, Spain
21. Faculty of Medicine and Health Sciences, Rovira i Virgili University (URV), 43003 Reus, Spain
22. Rare Diseases Research Unit, Foundation for the Promotion of Health and Biomedical Research in the Valencian Region (FISABIO), 46020 Valencia, Spain
23. Department of Health and Social Sciences, University of Murcia, 30100 Murcia, Spain
24. Evaluative Epidemiology Unit, Department of Epidemiology and Data Science, Fondazione IRCCS, Istituto Nazionale dei Tumori, 20133 Milan, Italy
25. Paediatric Oncology Department, La Fe Hospital, 46026 Valencia, Spain
26. Paediatrics, Obstetrics and Gynaecology Department, Faculty of Medicine, University of Valencia, 46010 Valencia, Spain