1. Department of Pediatric Oncology/Hematology, Charite-Medical School, Berlin, Germany
2. Children’s Hospital Stuttgart, “Pediatrics 5”, – Olgahospital, Stuttgart, Germany
3. Department of Pediatrics, Asklepios Hospital, Sankt Augustin, Germany
4. Department of Pediatric Neurology and Muscle Diseases, Children’s Hospital Freiburg, Freiburg-Medical School, Freiburg, Germany
5. Pediatrician, Arnsberg, Germany
6. Department of Pediatrics, HELIOS Clinics Krefeld, Krefeld, Germany
7. Department of Pediatics, University Hospital Cologne, Cologne, Germany
8. Department of Pediatric Orthopedics and Neuroorthopedics, University Hospital Bonn, Bonn, Germany
9. Department of Pediatric Surgery, Hospital Karlsruhe, Karlsruhe, Germany
10. Department of General Pediatrics, University Hospital Cologne, Cologne, Germany
11. Department of Pediatrics, Heidelberg Medical School/Hospital Mannheim, Mannheim, Germany
12. Department of Pediatrics/Division of Pediatric Orthopedics, Hospital Stuttgart, Stuttgart, Germany
13. Department of Pediatric Radiology, Jena University Hospital, Jena, Germany
14. Department of Pediatric Hematology and Oncology, Medical High School Hanover, Hanover