1. Hellenic Stroke Organization, Athens, Greece
2. Pfizer Hellas, Athens, Greece
3. HealThink (Medical Research & Innovation Pc), Thessaloniki, Greece
4. First Department of Cardiology, Ahepa University Hospital, Aristotle University of Thessaloniki, Greece
5. Department of Internal Medicine, Faculty of Medicine, School of Health Sciences, University of Thessaly, Larissa, Greece
6. Department of Internal Medicine, Faculty of Medicine, School of Health Sciences, University of Ioannina, Ioannina, Greece
7. Department of Cardiology, University of Patras Medical School, Patras, Greece
8. Cardiology Department, Heraklion University Hospital, Heraklion, Greece
9. 1st Department of Cardiology, Hippokration Hospital, University of Athens Medical School, Athens, Greece