| Affiliation: | 1. Pediatric Oncology Unit, Centre Oscar Lambret, , Lille, France;2. Epidemiology and Biostatistics Unit, Institut Gustave Roussy, , Villejuif, France;3. Pediatric Oncology Department, Institut Gustave Roussy, , Villejuif, France;4. Pediatric Hemato Oncology Department, CHU Nantes, , France;5. Pediatric Hemato Oncology Department, H?pital Trousseau, , Paris, France;6. Pediatric Hematology, CHU, , Lille, France;7. Institut d'Hémato Oncologie Pédiatrique, , Lyon, France;8. Pediatric Hematology Department, H?pital Robert Debré, , Paris, France;9. Pediatric Oncology Department, H?pital de la Timone, , Marseille, France;10. Pediatric Hemato Oncology Unit, American Memorial Hospital, , Reims, France;11. Pathology Department, Institut Gustave Roussy, , Villejuif, France |
