1. Department of Neurorehabilitation and Physical Therapy, Vivantes Klinikum Spandau, Neue Bergstrasse 6, 13585 Berlin, Germany
2. Neurology and Psychosomatics at Wittenbergplatz, Out-Patient-Clinic, Ansbacher straße 17-19, 10787 Berlin, Germany
3. Department of Neurology, Charité University Hospital (CBS), Hindenburgdamm 30, Berlin 12203, Germany