1. University College London National Institute for Health Research Biomedical Research Centre Great Ormond Street Institute of Child Health London UK
2. Great Ormond Street Hospital for Children London UK
3. Department of Neurology J. P. Garrahan Hospital, Capital Federal Buenos Aires Argentina
4. Référence centre for rare épilepsies, department of pediatric neurology necker enfants malades hospital, aphp, Paris Descartes university Paris France
5. Imagine institute insermU1163Paris France
6. Pediatric Neurology Unit Bambino Gesù Children's Hospital Rome Italy
7. Pediatric Neurology Unit A. Meyer Children's HospitalUniversity of Florence Florence Italy
8. Department of Pediatric Neurology UZ Leuven Leuven Belgium