1. Division of Child Neurology and Inherited Metabolic Diseases, Centre for Paediatrics and Adolescent Medicine University Hospital Heidelberg Heidelberg Germany
2. Eunice Kennedy Shriver National Institute of Child Health and Human Development NIH Bethesda Maryland USA
3. National Institute of General Medical Sciences NIH Bethesda Maryland USA
4. Research Group Development and Disease Max Planck Institute for Molecular Genetics Berlin Germany
5. Institute of Human Genetics, Technical University München Munich Germany
6. Institute of Human Genetics, Helmholtz Zentrum München Neuherberg Germany
7. Institute for Neurogenomics, Helmholtz Zentrum München Neuherberg Germany
8. Department of Neuroradiology University Hospital Heidelberg Heidelberg Germany