1. Université Paris‐Saclay, Univ Paris‐Sud, UVSQ, CESP, INSERM Villejuif France
2. Gustave Roussy Cancer CenterUniversité Paris‐SaclayBiostatistics and Epidemiology Unit Villejuif France
3. Gustave Roussy Cancer CenterDepartment of Pediatric and Adolescent Oncology Villejuif France
4. University Hospital Nottingham Nottingham United Kingdom
5. Necker Enfants Malades Paris France
6. Erasmus MC/Sophia Children's Hospital Rotterdam Rotterdam The Netherlands
7. Great Ormond Street Hospital for Children London United Kingdom
8. Centre Oscar‐LambretDepartment of Pediatric Oncology Lille France
9. Institut d'Hématologie et d'Oncologie pédiatrique Lyon France
10. Institut CurieSIREDO Oncology CenterPSL Research University Paris France
11. Centre Hospitalier Pellegrin Hôpital des Enfants Bordeaux France
12. Hôpital Brabois Enfants Nancy France
13. Hôpital de la Timone AP‐HM Marseille France
14. Centre Hospitalier UniversitaireDepartment of Pediatric and Adolescent Oncology Nantes France
15. Fondazione IRCCS Istituto Nazionale Tumori Milano Italy
16. Hôpital des Enfants Toulouse France
17. Universita Cattolica Gemelli Roma Italy
18. Gustave Roussy Cancer CenterClinical Research DirectionUniversité Paris‐SaclayUniv Paris‐Sud Villejuif France
19. Université Paris‐SaclayUniv Paris‐Sud CNRS UMR8203 Villejuif France