1. John Walton Muscular Dystrophy Research CentreInstitute of Genetic Medicine, Newcastle University Newcastle upon Tyne United Kingdom
2. Department of Clinical and Experimental MedicineUniversity of Pisa Pisa Italy via Roma 67 56126
3. Department of Life SciencesUniversity of Modena and Reggio Emilia Modena Italy
4. Department of Neuropediatrics and Muscle Disorders, Medical Center–University of FreiburgFaculty of Medicine Freiburg Germany