1. Department of Oncology; St. Jude Children's Research Hospital; Memphis Tennessee
2. Roswell Park Cancer Institute; University of Buffalo Jacobs School of Medicine and Biomedical Sciences; Buffalo New York
3. Department of Pediatric Oncology/Hematology; Erasmus MC-Sophia Children's Hospital; Rotterdam The Netherlands
4. Department of Radiology; University of Wisconsin School of Medicine and Public Health; Madison Wisconsin
5. University of Illinois College of Medicine; Peoria Illinois
6. Klinik für Strahlenheilkunde; Universitätsklinik Freiburg; Freiburg Germany
7. Division of Pediatric Hematology Oncology; Rutgers Cancer Institute of New Jersey; New Brunswick New Jersey
8. Department of Radiation Oncology; University of Florida; Gainesville Florida
9. University of Memphis School of Health Studies; Memphis Tennessee
10. Department of Diagnostic Imaging; University of Tennessee Health Sciences Center; Memphis Tennessee
11. Department of Nuclear Medicine; University Hospital of Leipzig; Leipzig Germany
12. Department of Paediatric Haematology & Oncology; Hôpital Trousseau AP-HP & Université Pierre et Marie Curie; Paris France
13. Division of Pediatric Hematology-Oncology; Department of Pediatrics; Stanford University School of Medicine; Stanford California
14. Rhode Island Hospital/Warren Alpert Medical School at Brown University; Providence Rhode Island
15. Division of Haematology/Oncology; Department of Paediatrics; SickKids Hospital and University of Toronto; Toronto Canada
16. University Clinic Halle (Saale); Halle Germany
17. Department of Radiology; Boston Children's Hospital Dana-Farber Cancer Institute; Boston Massachusetts
18. Royal Hospital for Sick Children; Edinburgh Scotland UK
19. Department of Pädiatrische Hämatologie und Onkologie; Zentrum für Kinderheilkunde der Justus-Liebig-Universität Gießen; Gießen Germany
20. Medical Faculty; Martin-Luther-University of Halle-Wittenberg; Halle Germany