1. Department of Pediatrics; Institute of Clinical Sciences; Sahlgrenska Academy at the University of Gothenburg; Göteborg Sweden
2. Department of Child Neurology; University Children's Hospital Tübingen; Tübingen Germany
3. Biomedical Research Institute Imas12-Ciberesp; 12 Octubre University Hospital; Madrid Spain
4. City Hospitals Sunderland NHS Foundation Trust; Sunderland Royal Hospital; Sunderland UK
5. Department of Neuropediatrics; Children's Hospital Zagreb; School of Medicine; University of Zagreb; Zagreb Croatia
6. Department of Paediatrics; University of Pecs; Pecs Hungary
7. Department of Paediatric Neurology; University Children's Hospital Tübingen; Tübingen Germany