1. Klinikum Stuttgart ‐ Olgahospital, Stuttgart Cancer Centre, Paediatrics 5 (Oncology, Haematology, Immunology) Stuttgart Germany
2. Medical Faculty Heidelberg Heidelberg University Heidelberg Germany
3. Bone Tumour Reference Centre, Institute of Medical Genetics and Pathology University Hospital Basel and University of Basel Basel Switzerland
4. Department for Paediatric Haematology and Oncology University's Children's Hospital Muenster Muenster Germany
5. Department of Thoracic Surgery University of Tubingen, Faculty of Science Tubingen Germany
6. Klinikum Stuttgart ‐ Olgahospital, Stuttgart Cancer Centre Institute of Radiology Stuttgart Germany
7. St. Anna Kinderspital University Hospital for Paediatric and Adolescent Medicine of the Medical University, and St. Anna Children's Cancer Research Institute (CCRI) Vienna Austria
8. Department of Paediatrics and Children's Cancer Research Centre, Klinikum rechts der Isar Technical University of Munich, School of Medicine Munich Germany
9. Paediatric Haematology and Oncology, Klinikum Kassel Kassel Germany
10. Department of Paediatric Haematology and Oncology Mannheim University Hospital Mannheim Germany