1. Second Department of Neurology School of Medicine “Attikon” University Hospital National and Kapodistrian University of Athens Athens Greece
2. Division of Neurology McMaster University/Population Health Research Institute Hamilton ON Canada
3. First Department of Neurology Aeginition Hospital National and Kapodistrian University of Athens Athens Greece
4. Department of Physiotherapy University of West Attica Athens Greece
5. Iatropolis Magnetic Resonance Diagnostic Centre Athens Greece
6. Department of Neurology The University of Tennessee Health Science Center Memphis TN USA