1. Medical Affairs Division, PRA Health Sciences Raleigh NC USA
2. Department of Neurology Wayne State University Detroit MI USA
3. Department of Neurology University of Michigan Ann Arbor MI USA
4. Department of Biostatistics and Computational Biology University of Rochester Rochester NY USA
5. Division of Neurology, Department of Pediatrics Nemours Children's Hospital Orlando FL USA
6. Division of Neurology, Department of Pediatrics Children's Hospital of Philadelphia Philadelphia PA USA
7. Department of Neurology Stanford University Stanford CA USA
8. Department of Neurology University of Iowa Hospitals and Clinics Iowa City IA USA
9. Sydney School of Health Sciences University of Sydney Sydney New South Wales Australia
10. Centre for Neuromuscular Diseases UCL Queen Square Institute of Neurology London United Kingdom