1. King's College Hospital NHS Foundation Trust; Department of Neurology; Academic Neuroscience Centre Denmark Hill London UK SE5 9RS
2. NHLI, Imperial College London; ICTEM Builiding; 4th Floor Hammersmith Campus W12 0HS UK
3. Ludwig-Maximilians-University; Department of Neurology, Friedrich-Baur-Institute, Laboratory for Molecular Myology; Ziemssenstr.1 Munich Germany 80336
4. Royal Victoria Infirmary; c/o Department of Neurology, Newcastle upon Tyne Hospitals Trust; Queen Victoria Road Newcastle Upon Tyne UK NE1 4LP
5. Thomas Jefferson University; Department of Neurology, Sidney Kimmel Medical College; 901 Walnut Street 4th Floor Philadelphia PA USA 19107
6. National Hospital for Neurology and Neurosurgery; MRC Centre for Neuromuscular Diseases; PO Box 114 London UK WC1N 3BG
7. University of Rochester; Department of Neurology; 601 Elmwood Avenue Rochester NY USA 14642