1. Clinical Neurology Research Group, Room N13 ITTC Building; Peninsula College of Medicine and Dentistry; Tamar Science Park Plymouth United Kingdom
2. Newcastle Muscle Team; Institute of Human Genetics, International Centre for Life; Central Parkway Newcastle United Kingdom
3. Department of Physical Therapy; The Children's Hospital of Philadelphia; Philadelphia Pennsylvania USA
4. Department of Physical Therapy and Human Movement Sciences; Feinberg School of Medicine Northwestern University; Chicago Illinois USA
5. University of Utah School of Medicine; Salt Lake City Utah USA
6. Great Ormond Street Children's Hospital for the Dubowitz Neuromuscular Center; London England
7. Rehabiliterings Center for Muskelsvind; Aarhus Denmark
8. Centre Hospitalier; Lyon Sud France
9. Department de Pharmacologie Clinique; Hôpital Pitié-Salpêtrière; Assistance Publique-Hôpitaux de Paris (AP-HP) Paris France
10. Department of Paediatric Neurology; Neuropsichiatra Infantile; Polclinico Gemell, Largo Gemelli Rome Italy
11. Division of Neuromuscular Medicine, Department of Neurology; The Ohio State University; Columbus Ohio USA
12. Neuromuscular Division; Department of Neurology; Washington University School of Medicine; St. Louis Missouri USA
13. Departments of Clinical Sciences (Biostatistics) and Psychiatry; University of Texas Southwestern Medical Center; Dallas Texas USA
14. Pediatrics and Neurology and Neurotherapeutics; University of Texas Southwestern Medical Center; Pediatric Neurology, Children's Medical Center Ambulatory Care Pavilion Dallas Texas USA
15. Department of Physical Therapy; University of Texas Southwestern Medical Center; Dallas Texas USA
16. Department of Neurology; University of Rochester School of Medicine and Dentistry; Rochester New York USA
17. Department of Neurology; King's College Hospital; Denmark Hill London United Kingdom
18. CBS Squared, Inc; Fort Washington, PA for Project Cure; USA
19. Department of Neurology; University of Virginia; Charlottesville Virginia USA
20. Spinal Muscular Atrophy Foundation; New York New York USA
21. Departments of Neurology and Pediatrics; The Ohio State University/Nationwide Children's Hospital; 395 W. 12th Avenue Columbus Ohio 43210 USA