1. Department of Pediatric Neurology, Centre for Neuromuscular Disorders, Centre for Translational Neuro‐ and Behavioral Sciences University Duisburg‐Essen Essen Germany
2. Leibniz‐Institut für Analytische Wissenschaften – ISAS – e.V Dortmund Germany
3. Department of Clinical Neurosciences, John Van Geest Centre for Brain Repair, School of Clinical Medicine University of Cambridge Cambridge UK
4. Institute of Clinical Genetics and Tumor Genetics Bonn Germany
5. Department of Neurology Friedrich‐Baur Institute Munich Germany
6. Medical Genetic Center Munich Munich Germany
7. Institute of Neuropathology Justus Liebig University Giessen Germany
8. Children's Hospital of Eastern Ontario Research Institute Ottawa ON Canada