1. Department of Medicine Second Medical Clinic Aristotle University of Thessaloniki Ippokration Hospital Thessaloniki Macedonia Greece
2. Department of General Internal Medicine University Hospital Inselspital Bern Switzerland
3. First Department of Pharmacology Department of Medicine Aristotle University of Thessaloniki Ippokration Hospital Thessaloniki Macedonia Greece
4. Emergency Department University Hospital Inselspital Bern Switzerland
5. Department of Neurology Papageorgiou General Hospital Thessaloniki Macedonia Greece
6. First Department of Neurology AHEPA University Hospital Aristotle University of Thessaloniki Thessaloniki Macedonia Greece