1. Department of Pediatric Neurology, Charité, University Medical Center, Berlin, Germany, Laboratoire de Neurologie du Développement, Inserm-Paris U676, Hôpital Robert Debré, Paris, France, MD-NET, Bonn, Germany
2. Department of Pediatric Neurology, Charité, University Medical Center, Berlin, Germany, Department of Biology, Chemistry and Pharmacy, Free University of Berlin, Berlin, Germany
3. Insitute of Human Genetics, University Hospital, Technical University, Aachen, Germany, MD-NET, Bonn, Germany
4. Institute of Human Genetics, Charité, University Medical Center, Berlin, Germany, MD-NET, Bonn, Germany
5. Department of Pediatric Neurology, Charité, University Medical Center, Berlin, Germany
6. Department of Pediatric Neurology, Charité, University Medical Center, Berlin, Germany, MD-NET, Bonn, Germany,