1. Department of Neurology; University of Ioannina School of Medicine; Ioannina Greece
2. Second Department of Neurology; Attikon University Hospital, School of Medicine, University of Athens; Athens Greece
3. Department of Hygiene; Epidemiology, and Medical Statistics, School of Medicine, University of Athens; Athens Greece
4. Second Department of Cardiology; Attikon University Hospital, School of Medicine, University of Athens; Athens Greece
5. Stroke Prevention and Atherosclerosis Research Centre, Robarts Research Institute, University of Western Ontario; London Ontario Canada
6. Department of Neurology; School of Medicine, University of Patras; Patras Greece
7. First Department of Neurology; Eginition Hospital, School of Medicine, University of Athens; Athens Greece
8. Department of Neurology; University of Tennessee Health Sciences Center; Memphis TN
9. School of Nursing; Australian Catholic University; Sydney Australia
10. International Clinical Research Center; Department of Neurology, St Anne's University Hospital Brno; Brno Czech Republic