| Affiliation: | 1. Olgahospital, Pediatrics 5 (Oncology, Hematology, Immunology, Rheumatology, Gastroenterology, and General Pediatrics), , Klinikum Stuttgart, Stuttgart, Germany;2. Department of Radiotherapy, University of Münster, , Münster, Germany;3. Department of Pediatric Surgery and Pediatric Urology, University of Tübingen, , Tübingen, Germany;4. Institute of Pediatric Pathology, University of Kiel, , Kiel, Germany;5. Department of Pediatric Oncology, Technische Universit?t München, , München, Germany;6. Clinical Cooperation Group Osteosarcoma, Helmholtz Center, , München, Germany;7. Department of Pediatric Oncology, University of Würzburg, , Würzburg, Germany;8. Department of Pediatric Oncology, University of Freiburg, , Freiburg, Germany;9. Department of Pediatric Oncology, University of Heidelberg, , Heidelberg, Germany;10. Department of Pediatric Oncology, University of Wroclaw, , Wroclaw, Poland;11. St. Anna Kinderspital, Vienna, , Vienna, Austria;12. Department of Pediatric Oncology, University of Basel, , Basel, Switzerland;13. Vestische Kinder‐und Jugendklinik Datteln, University of Witten‐Herdecke, , Witten, Germany;14. Department of Women's and Child's Health, University of Uppsala, , Uppsala, Sweden;15. Department of Pediatric Hematology and Oncology, University Children's Hospital Münster, , Münster, Germany;16. Department of Pediatric Oncology University of Frankfurt (Main), Frankfurt, , Germany;17. Department of Pedatric Oncology, University of Frankfurt, , Frankfurt (Main), Germany |
