1. Laboratory of Medical Genetics, Medical School, National and Kapodistrian University of Athens, St. Sophia's Children's Hospital, Athens, Greece
2. Research University Institute for the Study and Prevention of Genetic and Malignant Disease of Childhood, National and Kapodistrian University of Athens, St. Sophia’s Children’s Hospital, Athens, Greece
3. Department of Genetic Medicine and Development, Medical School, University of Geneva, Geneva, Switzerland
4. Biomedical Research Foundation of the Academy of Athens, Athens, Greece
5. Pediatric Neurology Department, St. Sophia’s Children’s Hospital, Athens, Greece
6. Agrifood and Life Sciences Institute, Hellenic Mediterranean University, Heraklion, Crete, Greece
7. Pediatric Neurology Department, Venizelion Hospital, Heraklion, Greece
8. Second Department of Pediatrics, Medical School, National and Kapodistrian University of Athens, P. & A. Kyriakou Children’s Hospital, Athens, Greece
9. Forth Department of Pediatrics, Medical School, National and Kapodistrian University of Athens, General Hospital of Athens Attikon, Athens, Greece
10. Aristotle University of Thessaloniki, Papageorgiou General Hospital, Thessaloniki, Greece
11. Pediatric Neurology Department, P. & A. Kyriakou Children’s Hospital, Athens, Greece
12. Department of Pediatric Neurology, Iaso Children’s Hospital, Marousi, Greece
13. First Department of Pediatrics, Medical School, National and Kapodistrian University of Athens, St. Sophia’s Children’s Hospital, Athens, Greece