1 Department of Neurology, Ghent University Hospital, Corneel Heymanslaan 10, 9000, Ghent, Belgium. Electronic address: patrick.santens@ugent.be.
2 Department of Neurology, Ghent University Hospital, Corneel Heymanslaan 10, 9000, Ghent, Belgium.
3 Department of Biomolecular Medicine, Faculty of Medicine and Health Sciences, Ghent University, Corneel Heymanslaan 10, 9000, Ghent, Belgium; Center for Medical Genetics, Ghent University Hospital, Corneel Heymanslaan 10, 9000, Ghent, Belgium.
4 Center for Medical Genetics, Ghent University Hospital, Corneel Heymanslaan 10, 9000, Ghent, Belgium.