1. Division of Genetic Medicine Lausanne University Hospital and University of Lausanne Lausanne Switzerland
2. Division of Medical Genetics, Department of Pediatrics University of Utah Salt Lake City Utah USA
3. Childhood Cancer Research Unit Department of Women's and Children's Health, Karolinska Institutet Stockholm Sweden
4. Department of Molecular Medicine and Surgery, Center for Molecular Medicine, Karolinska Institutet, and Clinical Genetics Karolinska University Laboratory and Karolinska University Hospital Stockholm Sweden
5. Theme of Children's Health Karolinska University Hospital Stockholm Sweden
6. Department of Pediatrics, S.Orsola‐Malpighi Hospital University of Bologna Bologna Italy
7. Immunology and Infectious Diseases Unit University‐Hospital Pediatric Department (DPUO), Bambino Gesù Children's Hospital, IRCSS Rome Italy
8. Department of Systems Medicine University of Rome Tor Vergata Rome Italy
9. Genetikum Stuttgart Genetic Counselling and Diagnostics Stuttgart Germany
10. Division of Pediatric Hematology and Oncology University Medical Center Göttingen Göttingen Germany
11. Department of Pediatrics, Pediatric Genetics Unit Acibadem Mehmet Ali Aydinlar University School of Medicine Istanbul Turkey
12. North East Thames Regional Genetics Service Great Ormond Street Hospital London UK
13. Clinical Genetics Department Guy's and St Thomas' NHS Hospital London UK
14. Division of Medical and Molecular Genetics King's College London UK
15. Department of Oncology‐Pathology Karolinska Institutet Solna Sweden
16. Pediatric Onco‐Hematology Unit, Department of Women's and Children's Health University of Padova Padova Italy
17. Clinical Genetics and Epidemiology Unit, Department of Laboratory Medicine University Hospital of Padova Padova Italy
18. Center for Intractable Diseases Saitama Medical University Hospital Saitama Japan