1. Department of Neurology, University Medical Center Hamburg-Eppendorf, Hamburg, Germany
2. Department of Neurology, Charité – University Medicine Berlin, Berlin, Germany
3. Clinic for Neurological Rehabilitation, MEDICLIN Klinikum Soltau, Soltau, Germany
4. Department Neurology, RehaCentrum Hamburg, Hamburg, Germany
5. Department Neurology, VAMED Klinik Geesthacht, Geesthacht, Germany
6. Clinic for Neurological Rehabilitation, Klinikum Bad Bramstedt, Bad Bramstedt, Germany
7. Department Neurology, VAMED Rehaklinik Damp, Damp, Germany