1. Department of Neurology, University Hospitals Leuven, Department of Neuroscience KU Leuven Center for Brain & Disease Research VIB Leuven Belgium
2. Department of Basic and Clinical Neuroscience Maurice Wohl Clinical Neuroscience Institute, Institute of Psychiatry, Psychology and Neuroscience, King's College London London UK
3. Department of Clinical Science, Neurosciences Umeå University Umeå Sweden
4. Rita Levi Montalcini Department of Neuroscience University of Turin Turin Italy
5. Azienda Ospedaliero Universitaria Città della Salute e della Scienza di Torino Turin Italy
6. Centre SLA, CHU Limoges Limoges France
7. Faculdade de Medicina Instituto de Medicina Molecular, Universidade de Lisboa, Centro Académico de Medicina de Lisboa Lisbon Portugal
8. Academic Unit of Neurology Trinity Biomedical Sciences Institute, Trinity College Dublin Dublin Ireland
9. Department of Neurology Medical University of Warsaw Warsaw Poland
10. Department of Neurology, Ulm University, German Center for Neurodegenerative Diseases (DZNE) Ulm Germany
11. Sheffield Institute for Translational Neuroscience, University of Sheffield Sheffield UK
12. ALS Unit, Department of Neurology Hospital Universitario San Rafael Madrid Spain
13. Department of Neurology, Hannover Medical School Hannover Germany
14. Cochrane Response London UK
15. EUpALS (European Organization for Professionals and Patients with ALS) and ALS Liga België Leuven Belgium
16. Neurology Department, Paris ALS Center, Groupe Hospitalier Pitié‐Salpêtrière, AP‐HP Paris France
17. Department of Neuroscience and Laboratory of Neuroscience IRCCS Istituto Auxologico Italiano Milan Italy
18. Department of Pathophysiology and Transplantation, Dino Ferrari Center Università degli Studi di Milano Milan Italy
19. Department of Neurology Haukeland University Hospital Bergen Norway
20. Department of Neurology, UMC Utrecht Brain Center University Medical Center Utrecht Utrecht The Netherlands
21. Neuromuscular Diseases Unit/ALS Clinic St. Gallen Switzerland