1. Department of Neurology, University of Erlangen-Nuremberg, Erlangen, Germany.
2. NeuroPoint Patientenakademie, Ulm, Germany.
3. Department of Neurology, St. Josef Hospital, Ruhr University Bochum, Bochum, Germany.
4. Department of Neurology, Medical Faculty, University of Augsburg, Augsburg, Germany.