1. Department of Neurology Brigham and Women's Hospital Boston Massachusetts USA
2. Marinus Pharmaceuticals Radnor Pennsylvania USA
3. International Center for Epilepsy St. Bernard Hospital New Orleans Louisiana USA
4. Carolinas Medical Center Atrium Health Charlotte North Carolina USA
5. Department of Neurology Duke University Durham North Carolina USA
6. Neurodiagnostic Center Veterans Affairs Medical Center Durham North Carolina USA