1. The Howard Hughes Medical Institute, Bar Harbor, ME 04609, USA.
2. The Jackson Laboratory, 600 Maine Street, Bar Harbor, ME 04609 USA.
3. Department of Clinical Genetics, Erasmus Medical Center, 3000 DR, Rotterdam, Netherlands.
4. Department of Human Genetics, Section of Medical Genomics, VU University Medical Center, and Center for Neurogenomics and Cognitive Research, VU University and VU University Medical Center, 1081 BT, Amsterdam, Netherlands.
5. Regional Epilepsy Center, University of Catanzaro, 89100, Reggio Calabria, Italy.