1. Boyne Research Institute Drogheda Ireland
2. Institute of Medical Biostatistics, Epidemiology and Informatics, University Medical Center Johannes Gutenberg University Mainz Mainz Germany
3. Regional Cancer Centre South Lund Sweden
4. Epidemiology and Biostatistics Unit, and DOPO Clinic, IRCCS Istituto Giannina Gaslini Genoa Italy
5. St. Anna Children's Hospital Vienna Austria
6. Department of Pediatrics and Adolescent Medicine Johannes Kepler University Linz, Kepler University Hospital GmbH Linz Austria
7. INSERM, Centre for Research in Epidemiology and Population Health (CESP) Villejuif France
8. Université Paris‐Sud Orsay Villejuif France
9. Department of Research Gustave Roussy Villejuif France
10. SIOPE, c/o BLSI, Clos Chapelle‐aux‐Champs 30 Brussels Belgium
11. Danish Cancer Society Research Center, Strandboulevarden Copenhagen Denmark
12. Department of Clinical Medicine, Faculty of Health Aarhus University Aarhus Denmark
13. Children's Hospital Landspitali University Hospital Reykjavik Iceland
14. Centre for Childhood Cancer Survivor Studies, Institute of Applied Health Research University of Birmingham Birmingham UK
15. Hungarian Childhood Cancer Registry, 2nd Department of Pediatrics Semmelweis University Budapest Hungary
16. Pediatric Clinic University of Milano‐Bicocca, Foundation MBBM Milan Italy
17. Italian Off‐Therapy Register (OTR) Monza Italy
18. German Childhood Cancer Registry (GCCR), Division of Childhood Cancer Epidemiology, Institute of Medical Biostatistics, Epidemiology and Informatics (IMBEI) Johannes Gutenberg University Mainz Mainz Germany
19. Department of Pediatric Oncology Emma Children's Hospital/Amsterdam UMC Amsterdam The Netherlands
20. Princess Maxima Centre for Paediatric Oncology Utrecht The Netherlands
21. Swiss Childhood Cancer Registry, Institute of Social and Preventive Medicine University of Bern Bern Switzerland
22. Paediatric Oncology, Department of Paediatrics, University Children's Hospital of Bern University of Bern Bern Switzerland
23. Department of Women and Children's Health Uppsala University Uppsala Sweden
24. Great Ormond Street Hospital for Children NHS Foundation Trust, Great Ormond Street London UK
25. Brandenburg Medical School, Institute of Biostatistics and Registry Research Neuruppin Germany
26. Childhood Cancer Registry of Piedmont, Department of Medical Science University of Turin and Center for Cancer Prevention (CPO‐Piemonte) Torino Italy
27. Translational and Clinical Research Institute Newcastle University Centre for Cancer Newcastle upon Tyne UK
28. Department of Paediatric and Adolescent Haematology and Oncology, Great North Children's Hospital, Royal Victoria Infirmary Newcastle Upon Tyne UK
29. Section of Cancer Surveillance International Agency for Research on Cancer Lyon Cedex France
30. Pediatric Oncology Unit Fondazione IRCCS Istituto Nazionale dei Tumori Milan Italy
31. Division of Radiotherapy Institute of Oncology Ljubljana Slovenia
32. Department of Clinical Sciences Lund Lund University, Skåne University Hospital, Pediatrics Lund Sweden