1. 1 Faculty of Medical Sciences “Luarasi” Tirana Republic of Albania
2. 2 Sport University Tirana Republic of Albania
3. 3 Faculty of Medicine Tetovo Republic of North Macedonia
4. 4 Department of Cardiology Faculty of Medicine “Ss Kiril and Metodij” University Skopje Republic of North Macedonia
5. 5 Department of Cardiology Medical Center Durres Republic of Albania
6. 6 Department of Internal Medicine-General Hospital “DR Ferit Murat” Gostivar Republic of North Macedonia
7. 7 Department of Cardiology Faculty of Medicine M. Teresa Tirana Republic of Albania