1. Neurology Department, Ulm University, Ulm, Germany
2. Department of Neurology, Alfried Krupp Hospital, Essen, Germany
3. Department of Neurology, Hannover Medical School, Hannover, Germany
4. Charité University Hospital, Humboldt-University, Berlin, Germany
5. Department of Neurology, Jena University Hospital, Jena, Germany
6. Department for Neurodegenerative Disorders and Gerontopsychiatry, Bonn University, Bonn, Germany
7. Kantonsspital St. Gallen, ALS Outpatient Clinic, St. Gallen, Switzerland
8. Department of Neurosciences and Mental Health, Hospital de Santa Maria-CHLN, Lisbon, Portugal
9. Department of Pharmacology and Clinical Neuroscience, Umeå University, Umeå, Sweden
10. Institute of Neuropathology, RWTH Aachen University Hospital, Aachen, Germany
11. Department of Neurology, RWTH Aachen University Hospital, Aachen, Germany
12. Department of Neurology, University Hospitals Leuven, Leuven, Belgium
13. Laboratory for Muscle Diseases and Neuropathies, Department of Neurosciences, Experimental Neurology, KU Leuven - University of Leuven, Leuven, Belgium
14. Department of Neurology, DKD HELIOS Klinik Wiesbaden, Wiesbaden, Germany
15. Department of Neurology Martin-Luther-University Halle-Wittenberg, Halle/Saale, Germany
16. Department of Neurology, University of Würzburg, Würzburg, Germany
17. Institute of Human Genetics, Ulm University, Ulm, Germany
18. Institute of Human Genetics, University Medical Center Hamburg-Eppendorf, Hamburg, Germany
19. Institute of Clinical Neurobiology, University Hospital of Würzburg, Würzburg, Germany
20. Department of Neurology with Friedrich-Baur-Institute, University of Munich, Munich, Germany
21. German Center for Neurodegenerative Diseases (DZNE), Munich, Germany
22. Munich Cluster for Systems Neurology (SyNergy), Munich, Germany
23. Instituto de Medicina Molecular and Institute of Physiology, Faculty of Medicine, University of Lisbon, Portugal
24. SyNergy, Munich Cluster for Systems Neurology, Ludwig Maximilians Universität München, Germany
25. Institute of Human Genetics, Technische Universität München, München, Germany