1. Faculty of Medicine, University Josip Juraj Strossmayer, Department of Internal Medicine, Family Medicine and the History of Medicine, Osijek, Croatia
2. Faculty of Dental Medicine and Health, University Josip Juraj Strossmayer, Department of Public Health, Osijek, Croatia
3. Department of Cardiovascular Surgery, Philipps University of Marburg, Baldinger Straße 6, Marburg 35043, Germany
4. Department of Cybernetics and Artificial Intelligence, Faculty of Electrical Engineering and Informatics, Technical University of Košice, Letná 9, Košice 04200, Slovakia
5. Asklepios Harzkliniken, Department of Cardiology, Köslinerstr 12, Goslar 38642, Germany