1. Department of Neurology University Hospital Würzburg Würzburg Bavaria Germany
2. Academic Unit of Neurology, Trinity College Dublin the University of Dublin Dublin Leinster Ireland
3. Department of Neurology University Medical Center of the Johannes Gutenberg‐UniversityMainz Mainz Rheinland‐Pfalz Germany
4. Department of Neurology, UKSH Christian‐Albrechts‐University Kiel Kiel Schleswig‐Holstein Germany