1. Arkansas Epilepsy Program Little Rock Arkansas U.S.A
2. Epilepsy Research Centre and Department of Medicine The University of Melbourne, Austin Health Heidelberg Victoria Australia
3. Department of Neurology Vanderbilt University Medical Center Nashville Tennessee U.S.A
4. Department of Neurology Jefferson Comprehensive Epilepsy Center Thomas Jefferson University Philadelphia Pennsylvania U.S.A
5. UCB Pharma Raleigh North Carolina U.S.A