1. South East of Scotland Clinical Genetics Service; Crewe Road Edinburgh UK
2. Centre for Genomic & Experimental Medicine; MRC Institute of Genetics and Molecular Medicine; University of Edinburgh; Western General Hospital; Crewe Road Edinburgh EH4 2XU UK
3. Muir Maxwell Epilepsy Centre; University of Edinburgh; 20 Sylvan Place Edinburgh EH9 1UW UK
4. Paediatric Neurosciences; Royal Hospital for Sick Children; Sciennes Road Edinburgh EH9 1LF UK
5. Epilepsy Center; Departments of Pediatrics and Neurology; Ann & Robert H. Lurie Children's Hospital of Chicago; Northwestern University Feinberg School of Medicine; 225 E Chicago Ave Box #29 Chicago Illinois 60611
6. MRC Human Genetics Unit; MRC Institute of Genetics and Molecular Medicine; University of Edinburgh; Western General Hospital; Crewe Road Edinburgh EH4 2XU UK
7. Child Life and Health; University of Edinburgh; 20 Sylvan Place Edinburgh EH9 1UW UK
8. South West Thames Regional Genetics Service; St George's Hospital; Tooting London UK
9. Department of Clinical Genetics; Great Ormond Street Hospital; Great Ormond Street London UK
10. Division of Medical Genetics; Arkansas Children's Hospital; Little Rock Arkansas