1. Epilepsy Unit, University of Glasgow, Glasgow, United Kingdom.
2. Epilepsy and Migraine Treatment Center, Krakow, Poland.
3. Vestra Clinics - Dedicated Research Clinics, Rychnov nad Kneznou, Czech Republic.
4. NIHR University College London Hospitals Biomedical Research Centre, UCL Queen Square Institute of Neurology, London, WC1N 3BG, United Kingdom.
5. Chalfont Centre for Epilepsy, Chalfont St. Peter, United Kingdom.
6. Stichting Epilepsie Instellingen Nederland (SEIN), Heemstede, Netherlands.
7. Epilepsy Unit, Neurology Department, Vall d'Hebron Hospital, Barcelona, Spain.
8. GW Research Ltd, Cambridge, United Kingdom.
9. Greenwich Biosciences, Inc., Carlsbad, California, USA.