1. Department of Human Genetics; Hannover Medical School; Hannover Germany
2. Pediatrics 5 (Oncology, Hematology, Immunology); Klinikum Stuttgart-Olgahospital; Stuttgart Germany
3. Medical Faculty, Department of Pediatric Oncology, Hematology and Clinical Immunology, University Children's Hospital; Heinrich Heine University; Düsseldorf Germany
4. General Pediatrics, Hematology/Oncology; University Children's Hospital Tuebingen; Tuebingen Germany
5. Department of Pediatrics and Adolescent Medicine; University of Erlangen-Nuremberg; Erlangen Germany
6. Pediatric Hematology and Oncology; University Children's Hospital Muenster; Muenster Germany
7. Department of Pediatrics and Adolescent Medicine; University Medical Center Ulm; Ulm Germany
8. Department of Pediatric Oncology and Hematology; Charité University Medicine; Berlin Germany
9. Faculty of Medicine, Division of Pediatric Hematology and Oncology Medical Center, Department of Pediatrics and Adolescent Medicine; University of Freiburg; Freiburg Germany
10. Pediatric Oncology and Hematology, Pediatrics III; University Hospital of Essen; Essen Germany
11. Children's Hospital Augsburg; Swabian Children's Cancer Center; Augsburg Germany
12. Department of Pediatric Hematology and Oncology; University of Saarland; Homburg Germany
13. Department of Otorhinolaryngology and Head/Neck Surgery; Heinrich Heine University; Düsseldorf Germany
14. Department of Pediatric Hematology and Oncology; University of Cologne; Cologne Germany
15. Department of Pediatric Hematology and Oncology; University Medical Center Hamburg-Eppendorf; Hamburg Germany
16. Institute of Human Genetics; University of Erlangen-Nuremberg; Erlangen Germany
17. Hannover Unified Biobank; Hannover Medical School; Hannover Germany
18. German Childhood Cancer Registry (GCCR), Institute for Medical Biostatistics, Epidemiology and Informatics (IMBEI); University Medical Center of the Johannes Gutenberg-University Mainz; Mainz Germany
19. Department of Pediatric Surgery; Dr. von Hauner Children's Hospital; Ludwig-Maximilians-University; Munich Germany
20. Hospital for Children and Adolescents; Goethe-University Frankfurt; Frankfurt am Main Germany
21. Division of Pediatric Hematology; Oncology and Stem Cell Transplantation; University Medical Center; Aachen Germany
22. Department of Pediatric Hematology and Oncology; Justus Liebig University; Giessen Germany
23. Division of Pediatric Hematology and Oncology; University Medical Center Goettingen; Goettingen Germany
24. Department of Pediatric Oncology, Hematology and Immunology; Heidelberg University Hospital; Heidelberg Germany
25. Pediatric Hematology and Oncology; Hannover Medical School; Hannover Germany
26. Kiel Paediatric Tumor Registry; Department of Paediatric Pathology; University of Kiel; Kiel Germany
27. Institute of Human Genetics; University Hospital Essen; Essen Germany
28. Eye Oncogenetics Research Group; University Hospital Essen; Essen Germany
29. Department of Pediatric Oncology; Klinikum Kassel; Kassel Germany
30. Clinical Cooperation Group Osteosarcoma; Helmholtz Zentrum Munich; Neuherberg Germany
31. Pediatric Oncology Center; Technical University Munich; Munich Germany
32. Department of Surgery; Children's Hospital, Hannover Medical School; Hannover Germany
33. Division of Pediatric Neuro-Oncology; German Cancer Research Center (DKFZ); Heidelberg Germany
34. Department of Pediatric Hematology/Oncology; University Medical Center Mainz; Mainz Germany
35. Institute of Medical Genetics and Applied Genomics; University of Tuebingen; Tuebingen Germany
36. Clinic of Pediatrics; Dortmund Germany
37. Department of Pediatrics; University Hospital Schleswig-Holstein, Campus Kiel; Kiel Germany
38. Department of Pediatrics; Division of Pediatric Hematology and Oncology; University Medical Center Goettingen; Goettingen Germany
39. Division of Pediatric Hematology and Oncology; University Hospital of Geneva; Geneva Switzerland
40. Pediatric Oncology; Otto von Guericke University Children's Hospital; Magdeburg Germany
41. Institute of Human Genetics; University Hospital Magdeburg; Otto-von-Guericke University; Magdeburg Germany