1. Department of Pediatric Oncology/Hematology, Charité Campus Virchow, Berlin, Germany,
2. Amgen Research (Munich) GmbH, Munich, Germany,
3. Department of Pediatric Oncology, University of Tübingen, Tübingen, Germany,
4. University of Pavia, Pavia, Italy,
5. Department of Pediatrics, San Gerardo Hospital, University of Milano-Bicocca, Monza, Italy,
6. Memorial Sloan-Kettering Cancer Center, New York, NY, USA,
7. Department of Pediatric Oncology, University of Düsseldorf, Düsseldorf, Germany,
8. Children's Hospital of Philadelphia, Philadelphia, PA, USA,
9. Division for Stem Cell Transplantation and Immunology, Hospital for Children and Adolescents III, University of Frankfurt, Frankfurt, Germany,
10. Department of Oncology, St Jude Children's Research Hospital, Memphis, TN, USA,
11. Children’s Healthcare of Atlanta, Atlanta, GA, USA,
12. Department of Pediatrics, University of California San Francisco School of Medicine, San Francisco, CA, USA,
13. Oncology, Cincinnati Children's Hospital Medical Center, Cincinnati, OH, USA,
14. Pediatric Oncology, Erasmus Medical Center, Sophia Children’s Hospital, Rotterdam, Netherlands,
15. Amgen Inc., Rockville, MD, USA,
16. Amgen Inc., Thousand Oaks, CA, USA,
17. Hospital for Sick Children, Toronto, ON, Canada,
18. Children’s Hospital Colorado, Aurora, CO, USA