1. Department of Neurology, University of Bern, Switzerland
2. Clinical Neurogenetics, Hertie‐Institute for Clinical Brain Research, and German Center for Neurodegenerative Diseases University of Tübingen, Tübingen, Germany
3. Department of Neurology, University Hospital of Antwerp, Antwerpen, Belgium
4. Department of Molecular Genetics, VIB; Antwerpen, Belgium
5. Laboratory of Neurogenetics, Institute Born‐Bunge, and University of Antwerp, Antwerpen, Belgium
6. Institute of Clinical Neuroscience, Umeå University, Umeå, Sweden
7. Department of Neurodegenerative Diseases, Hertie‐Institute for Clinical Brain Research, and German Center for Neurodegenerative Diseases of Tübingen, Tübingen, Germany
8. Department of Neurology and Cerebrovascular Diseases, Pandy County Hospital, Gyula, Hungary
9. Assistance Publique‐Hôpitaux de Paris, Centre de référence des canalopathies musculaires, Groupe Hospitalier Pitié‐Salpêtrière, Paris, France
10. Fondazione‐IRCCS, Istituto Neurologico Carlo Besta, Milan, Italy
11. The Dublin Neurological Institute, Mater Misericordiae University, Beaumont & Mater Private Hospitals, Dublin, Ireland
12. Unit of Genetic of Neurodegenerative and Metabolic Diseases, IRCCS Foundation, Neurological Institute Carlo Besta, Milan, Italy
13. Division of Molecular Neurogenetics, IRCCS Foundation Neurological Institute Carlo Besta, Milan, Italy
14. Department of Neurodegenerative Disease, Institute of Neurology and National Hospital for Neurology and Neurosurgery, Queen Square, London, UK
15. Department of Neurology, Oslo University Hospital, Ullevål, Oslo; Norway Faculty Division, Ullevål University Hospital, University of Oslo, Oslo, Norway
16. Department of Neurology, KA Rudolfstiftung, Vienna and Danube University Krems, Austria