1. Department of Neurology, Dayanand Medical College, Ludhiana, India
2. NIHR University College London Hospitals Biomedical Research Centre, UCL Queen Square Institute of Neurology, London, UK
3. Chalfont Centre for Epilepsy, Bucks, UK
4. Stichting Epilepsie Instellingen Nederland (SEIN), Heemstede, The Netherlands