1. Department of Neuropathology; University Hospital Erlangen, Friedrich-Alexander-University Erlangen-Nürnberg; Erlangen Germany
2. Department of Neurosurgery; University Hospital Erlangen, Friedrich-Alexander-University Erlangen-Nürnberg; Erlangen Germany
3. Neuropediatric Clinic and Clinic for Neurorehabilitation; Epilepsy Center for Children and Adolescents, Schoen-Klinik Vogtareuth; Vogtareuth Germany
4. Epilepsy Center Bethel, Hospital Mara; Bielefeld Germany
5. Department of Neurosurgery; Evangelisches Krankenhaus Bielefeld; Kantensiek 11 33617 Bielefeld Germany
6. Department of Radiology; University Hospital Bonn; 53127 Bonn Germany
7. Department of Radiology; University Hospital Freiburg; Freiburg Germany
8. Department of Neuropathology; University Hospital Bonn; 53127 Bonn Germany
9. Swiss Epilepsy Center; Zurich Switzerland
10. Servicio de Neurología, Hospital Ruber International; C/La Masó n 38 28034 Madrid Spain
11. Department of Pediatrics; Medical University Vienna; 1090 Vienna Austria
12. Institute of Neurology; Medical University Vienna; 1090 Vienna Austria
13. Department of Neurosurgery; Medical University Vienna; 1090 Vienna Austria