1. Brno Epilepsy Center and Central European Institute of Technology (CEITEC) Masaryk University Brno Czech Republic
2. Department of Neurology Johns Hopkins University School of Medicine Baltimore Maryland USA
3. National Epilepsy Center Shizuoka Institute of Epilepsy and Neurological Disorders Shizuoka Japan
4. North Tohoku Epilepsy Center Minato Hospital Hachinohe Japan
5. Formerly: Eisai Inc. Woodcliff Lake New Jersey USA
6. Eisai Ltd. Hatfield UK
7. Eisai Inc. Woodcliff Lake New Jersey USA
8. Idaho Comprehensive Epilepsy Center Boise Idaho USA