1. East Slovak Institute of Cardiovascular Diseases Kosice Slovakia
2. Faculty of Medicine Pavol Jozef Šafárik University Kosice Slovakia
3. Cardiology Department Guys and St Thomas NHS Hospitals London UK
4. University of Prešov Prešov Slovakia
5. University Hospital of St. Cyril and Methodius Bratislava Slovakia
6. Faculty of Medicine Comenius University Bratislava Slovakia
7. National Institute of Cardiovascular Diseases Bratislava Slovakia
8. Academy‐Research Organization Bratislava Slovakia
9. Internal Department Malacky Hospital Malacky Slovakia
10. Faculty of Medicine Slovak Medical University Bratislava Slovakia