1 Department of Pediatric Neurology, KidZ Health Castle, Universitair Ziekenhuis Brussel, Brussels, Belgium; Neurogenetics Research Group, Vrije Universiteit Brussel, Brussels, Belgium; Centre for Medical Genetics, Universitair Ziekenhuis Brussel, Brussels, Belgium.
2 Department of Pediatric Hematology, Oncology and Stem Cell Transplantation, Ghent University Hospital, Ghent, Belgium.
3 Centre for Medical Genetics, Universitair Ziekenhuis Brussel, Brussels, Belgium.
4 Department of Pediatrics, AZ Sint Lucas, Ghent, Belgium.
5 Neurogenetics Research Group, Vrije Universiteit Brussel, Brussels, Belgium; Division of Pediatric Neurology, Department of Pediatrics, Antwerp University Hospital, Antwerp, Belgium.
6 Neurogenetics Research Group, Vrije Universiteit Brussel, Brussels, Belgium; Centre for Medical Genetics, Universitair Ziekenhuis Brussel, Brussels, Belgium. Electronic address: Katrien.stouffs@uzbrussel.be.