Affiliation: | 1. Spaarne Hospital, Hoofddorp, and Maastricht University Medical Centre, Maastricht, The Netherlands;2. CSL Behring GmbH, Marburg, Germany;3. CSL Behring LLC, King of Prussia, PA, USA;4. AZ St‐Lucas, Gent, Belgium;5. Department of Neurology, Universit?tsklinikum Würzburg, Würzburg, Germany;6. UZ Leuven, Leuven, Belgium;7. Department of Neurology, Helsinki University Central Hospital, Helsinki, Finland;8. Dolno?l?ski Szpital Specjalistyczny, Wroclaw, Poland;9. Samodzielny Publiczny Szpital Kliniczny, Lublin, Poland;10. Department of Neurology, Philipps University, Marburg, Germany;11. Reference Center for Rare Neuromuscular Diseases, H?pital Pitié‐Salpêtrière, and University Paris VI, Paris, France |