1 Neuromuscular Reference Centre, Department of Neurology, Antwerp University Hospital, Antwerpen, Belgium.
2 Translational Neurosciences, Faculty of Medicine and Health Sciences, UAntwerpen, Antwerp, Belgium.
3 Laboratory of Neuromuscular Pathology, Institute Born-Bunge, University of Antwerp, Antwerpen, Belgium.
4 Department of Neurodegenerative Diseases, Hertie-Institute for Clinical Brain Research and Center of Neurology, University of Tübingen, Tübingen, Germany.
5 German Center for Neurodegenerative Diseases (DZNE), Tübingen, Germany.
6 Dr. John T Macdonald Foundation Department of Human Genetics and Hussman Institute for Human Genomics, Miller School of Medicine, University of Miami, Miami, FL 33136, USA.
7 KU Leuven - University of Leuven, Department of Neurosciences, Experimental Neurology, and Leuven Brain Institute (LBI), Leuven, Belgium.
8 VIB, Center for Brain and Disease Research, Laboratory of Neurobiology, Leuven, Belgium.
9 University Hospitals Leuven, Department of Neurology, Leuven, Belgium.
10 University Hospitals Leuven, Department of Ophthalmology, Leuven, Belgium.