1 Second Department of Neurology, National and Kapodistrian University of Athens, School of Medicine, "Attikon" University Hospital, Athens, Greece.
2 Second Department of Neurology, National and Kapodistrian University of Athens, School of Medicine, "Attikon" University Hospital, Athens, Greece. Electronic address: lina_palaiodimou@yahoo.gr.
3 First Department of Neurology, National and Kapodistrian University of Athens, School of Medicine, Aeginitio Hospital, Athens, Greece.
4 Department of Physiotherapy, University of West Attica, Athens, Greece.
5 Nephrology Department, General Hospital of Livadia, Livadia, Greece.
6 Department of Neurology, School of Medicine, University of Patras, Rio-Patras, Greece.
7 Second Department of Radiology, National and Kapodistrian University of Athens, School of Medicine, "Attikon" University Hospital, Athens, Greece.
8 Second Department of Neurology, National and Kapodistrian University of Athens, School of Medicine, "Attikon" University Hospital, Athens, Greece; Department of Neurology, The University of Tennessee Health Science Center, Memphis, TN, United States.