1. Department of Neurology, Rigshospitalet, Copenhagen Neuromuscular Center University of Copenhagen Copenhagen Denmark
2. Department of Neurology Medical University of Vienna Vienna Austria
3. John Walton Muscular Dystrophy Research Centre, Translational and Clinical Research Institute Newcastle University and Newcastle Hospitals NHS Foundation Trust Newcastle Upon Tyne UK
4. Department of Clinical Genetics, Section 4062, Rigshospitalet University of Copenhagen Copenhagen Denmark