1. Department of Cardiology Clinical Hospital Zvezdara Belgrade Serbia
2. School of Medicine University of Belgrade Belgrade Serbia
3. Innovative Clinical Trials, Department of Cardiology and Pneumology University Medical Center Göttingen (UMG) Göttingen Germany
4. Department of Cardiology Charité – Universitätsmedizin Berlin Germany
5. Center for Stroke Research Berlin Charité Universitätsmedizin Berlin Germany
6. Department of Cardiology and Department of Research and Education General Hospital Celje Celje Slovenia
7. Faculty of Medicine University of Ljubljana Ljubljana Slovenia