1. Department of Neurology, Brain Center Rudolf Magnus University Medical Center Utrecht, Utrecht, The Netherlands;
2. Department of Neurology, University of Massachusetts Medical School, Worcester, MA, USA;
3. Department of Neurology and Laboratory of Neuroscience, IRCCS Istituto Auxologico Italiano, Milan, Italy;
4. Department of Pathophysiology and Transplantation, ‘Dino Ferrari' Center-Università degli Studi di Milano, Milan, Italy;
5. SURFsara, Amsterdam, The Netherlands;
6. Population Genetics Laboratory, Smurfit Institute of Genetics, Trinity College Dublin, Dublin, Republic of Ireland;
7. Department of Neurosciences, Experimental Neurology and Leuven Research Institute for Neuroscience and Disease (LIND), KU Leuven - University of Leuven, Leuven, Belgium;
8. Laboratory of Neurobiology, VIB, Center for Brain & Disease Research, Leuven, Belgium;
9. Department of Neurology, University Hospitals Leuven, Leuven, Belgium;
10. Department of Biostatistics and Health Informatics, Institute of Psychiatry, Psychology and Neuroscience, King's College London, London, UK;
11. Department of Pharmacology and Clinical Neuroscience, Umeå University, Umeå, Sweden;
12. Suna and Inan Kırac Foundatıon Neurodegeneration Research Laboratory, Bogazici University, Istanbul, Turkey;
13. Department of Biomedical Sciences, Faculty of Medicine and Health Sciences, Macquarie University, Sydney, New South Wales, Australia;
14. Institute of Physiology, Institute of Molecular Medicine, Faculty of Medicine, University of Lisbon, Lisbon, Portugal;
15. Department of Neurosciences, Hospital de Santa Maria-CHLN, Lisbon, Portugal;
16. ‘Rita Levi Montalcini' Department of Neuroscience, ALS Centre, University of Torino, Turin, Italy;
17. Department of Neuroscience, Azienda Ospedaliera Città della Salute e della Scienza, Turin, Italy;
18. Centre SLA, CHRU de Tours, Tours, France;
19. Federation des Centres SLA Tours and Limoges, LITORALS, Tours, France;
20. Department of Neurology Tel-Aviv Sourasky Medical Centre, Israel;
21. Department Neurology, Emory University School of Medicine, Atlanta, GA, USA;
22. Emory ALS Center, Emory University School of Medicine, Atlanta, GA, USA;
23. Department of Neurology, Beaumont Hospital, Dublin, Republic of Ireland;
24. ALS Unit, Hospital San Rafael, Madrid, Spain;
25. Faculty of Medicine, University of Southampton, Southampton, UK;
26. Human Genome Research Center, Bioscience Institute, University of São Paulo, SP, Brazil;
27. Sheffield Institute for Translational Neuroscience (SITraN), University of Sheffield, Sheffield, UK;
28. Neurology Department, Hospital Universitari de Bellvitge, Barcelona, Spain;
29. Department of Neurology, The Agnes Ginges Center for Human Neurogenetics, Hadassah-Hebrew University Medical Center, Israel;
30. Neuromuscular Diseases Unit/ALS Clinic, Kantonsspital St. Gallen, St. Gallen, Switzerland;
31. Department of Basic and Clinical Neuroscience, Maurice Wohl Clinical Neuroscience Institute, King's College London, London, UK