1. Department of Neuroscience, Mayo Clinic, Jacksonville, FL 32224, USA.
2. Mayo Graduate School, Mayo Clinic, Jacksonville, FL 32224, USA.
3. Brain Science Institute and Department of Neurology, Johns Hopkins University, Baltimore, MD 21205, USA.
4. Department of Psychiatry and Psychology, Mayo Clinic, Jacksonville, FL 32224, USA.
5. Department of Neurology, Mayo Clinic, Jacksonville, FL 32224, USA.
6. Section of Biostatistics, Mayo Clinic, Jacksonville, FL 32224, USA.
7. Motor Neuron Disorders Unit, National Institute of Neurological Disorders and Stroke, National Institutes of Health, Bethesda, MD 20892, USA.
8. Departments of Neurology and Pathology, University of Pittsburgh School of Medicine and the University of Pittsburgh Medical Center, Pittsburgh, PA 15213, USA.
9. Departments of Neurology and Neurobiology, Barrow Neurological Institute, Phoenix, AZ 85013, USA.
10. Department of Neurology, Emory University School of Medicine, Atlanta, GA 30322, USA.
11. Department of Neurology and the Penn Frontotemporal Degeneration Center, University of Pennsylvania, Philadelphia, PA 19104, USA.
12. Department of Neurology, Houston Methodist Neurological Institute, Houston, TX 77030, USA.
13. Center for Neurodegenerative Disease Research, Department of Pathology and Laboratory Medicine, Perelman School of Medicine at the University of Pennsylvania, Philadelphia, PA 19104, USA.
14. Department of Neurology–Stroke Unit and Laboratory of Neuroscience, IRCCS Istituto Auxologico Italiano, Milan, Italy.
15. Department of Neurology and Stroke Unit, Ospedale Maggiore di Crema, Crema, Italy.
16. Department of Neurology, University of Miami, Miami, FL 33136, USA.
17. Department of Neurology, Washington University School of Medicine, St. Louis, MO 63110, USA.
18. Ionis Pharmaceuticals, 2855 Gazelle Court, Carlsbad, CA 92010, USA.
19. Aleta Biotherapeutics, Natick, MA 01760, USA.
20. Protein Chemistry, Biogen Idec, Cambridge, MA 02142, USA.
21. Global Biomarker and Drug Discovery, Biogen Idec, Cambridge, MA 02142, USA.
22. Biologics Drug Discovery, Biogen Idec, Cambridge, MA 02142, USA.
23. Neurology Research, Biogen Idec, Cambridge, MA 02142, USA.
24. Department of Neurology, Erasmus MC, University Medical Centre, Rotterdam, Netherlands.
25. Department of Neurology, Memory and Aging Center, University of California, San Francisco, San Francisco, CA 94158, USA.
26. Department of Neurology, University of Massachusetts Medical School, Worcester, MA 01655, USA.
27. Neurological Clinical Research Institute, Massachusetts General Hospital, Boston, MA 02114, USA.
28. Department of Pathophysiology and Transplantation, “Dino Ferrari” Centre, Università degli Studi di Milano, Milan, Italy.
29. Neuromuscular Diseases Research Section, Laboratory of Neurogenetics, National Institute of Aging, National Institutes of Health, Bethesda, MD 20892, USA.
30. Department of Chemistry, The Scripps Research Institute, Scripps Florida, Jupiter, FL 33458, USA.
31. Department of Pathology, Emory University School of Medicine, Atlanta, GA 30322, USA.