1. Paediatric Neurology; French Centre for Paediatric Stroke; Necker-Enfants Malades University Hospital; APHP and Inserm UMR-S1140; Paris France
2. Paediatric Sickle-Cell Clinic; Necker-Enfants Malades University Hospital; APHP; Paris France
3. Paediatric Radiology and INSERM UMR1000; Necker-Enfants Malades University Hospital; APHP; Paris France
4. Neuroradiology; INSERM UMR S894; Centre Hospitalier Sainte-Anne; Paris Descartes University; Paris France
5. Paediatric Neurosurgery; INSERM UMR1000 Necker-Enfants Malades University Hospital; APHP; Paris France
6. INSERM UMR-S1140; Paris Descartes University and Hematology; Georges Pompidou European Hospital; APHP; Paris France
7. Paediatric Neurology; Paris Descartes University; Necker-Enfants Malades University Hospital; APHP; Paris France