1. Liverpool Centre for Cardiovascular Science, University of Liverpool and Liverpool Heart & Chest Hospital, Liverpool, UK
2. First Department of Cardiology and Angiology, Silesian Centre for Heart Diseases, Zabrze, Poland
3. Cardiology Clinic, University Clinical Center of Kragujevac, Kragujevac, Serbia
4. Clinical Center Sestre Milosrdnice, Zagreb, Croatia
5. Cardiology Clinic, Clinical Center of Serbia, Belgrade, Serbia
6. Clinic of Cardiology, University Hospital Center Mother Theresa, Tirana, Albania
7. Cardiology Clinic, Medical Faculty, University Clinical Center of Montenegro, University of Podgorica, Podgorica, Montenegro
8. Coronary Care Unit, National Heart Hospital, Sofia, Bulgaria
9. Cardiology Department, Colentina University Hospital, Bucharest, Romania
10. Cardiology Department, Clinic of Internal Medicine, Medical Faculty, University Clinical Center Tuzla, Tuzla, Bosnia and Herzegovina
11. Medicine University "Carol Davila", Colentina University Hospital, Bucharest, Romania
12. School of Medicine, Belgrade University, Belgrade, Serbia
13. Department of Clinical Medicine, Aalborg Thrombosis Research Unit, Aalborg University, Aalborg, Denmark