1. Department of Neurology, St. Josef-Hospital, Ruhr University Bochum, Gudrunstr. 56, 44791 Bochum, Germany
2. Department of Neurology, Laboratory of Neurogenetics, University of Thessaly, University Hospital of Larissa, 41100 Larissa, Greece
3. Second Department of Neurology, School of Medicine, ‘Attikon’ University Hospital, National and Kapodistrian University of Athens, Athens, Greece
4. Department of Nursing, National and Kapodistrian University of Athens, Athens, Greece
5. Department of Neurology, Laboratory of Neurogenetics, University of Thessaly, University Hospital of Larissa, Larissa, Greece
6. Department of Neurology, St. Josef-Hospital, Ruhr University Bochum, Bochum, Germany
7. Department of Neurology, The University of Tennessee Health Science Center, Memphis, TN, USA
8. Department of Neurology, Evangelisches Krankenhaus Herne, Ruhr University Bochum, Bochum, Germany