1. Neurology Department, Democritus University of Thrace, Alexandroupolis, Greece
2. Laboratory of Medical Statistics, Democritus University of Thrace, Alexandroupolis, Greece
3. B’ Department of Neurology and the MS Center, AHEPA University Hospital, Central Macedonia, Thessaloniki, Greece
4. Department of Occupational Therapy, University of West Attica, Athens, Greece
5. Cognitive Disorders/Dementia Unit, 2nd Department of Neurology, National and Kapodistrian University of Athens, Athens, Greece
6. Department of Physical Education and Sport Science, Democritus University of Thrace, Komotini, Greece
7. Department of Child and Adolescent, Democritus University of Thrace, Alexandroupolis, Greece