1. Department of Neurology; Olympion General Clinic; Volou & Meilichou, Kato Sichena 26443 Patra Greece
2. Stroke Unit; Metropolitan Hospital; Ethnarchou Makariou 9 & Elefth. Venizelou 1 18547 Piraeus Greece
3. Department of Cardiology; Olympion General Clinic; Volou & Meilichou, Kato Sichena 26443 Patra Greece
4. Stroke Unit, Department of Neurology; Brugmann University Hospital; Place Van Gehuchten 4 1020 Bruxelles Belgium
5. Dialysis Unit; Olympion General Clinic; Volou & Meilichou, Kato Sichena 26443 Patra Greece
6. Second Department of Neurology, “Attikon” Hospital, School of Medicine; University of Athens; Athens Greece
7. Department of Neurology; The University of Tennessee Health Science Center; Memphis TN
8. International Clinical Research Center, Department of Neurology; St. Anne's University Hospital in Brno; Brno Czech Republic