1. Department of Pediatric and Adolescent Oncology; Gustave Roussy; Villejuif France
2. Physical Medicine and Rehabilitation Department for Children With Acquired Neurological Injuries; Hôpital National de Saint Maurice; Saint-Maurice France
3. Department of Neuropathology; Sainte-Anne Hospital; Paris France
4. Department of Radiation Oncology; Gustave Roussy; Villejuif France
5. Department of Neurosurgery; Necker-Enfants Malades Hospital; Paris France