1. University Hospital Medical Center “Bežanijska Kosa”, Department of Cardiology, Belgrade
2. Institute for Cardiovascular Diseases “Dedinje”, Belgrade + Faculty of Medicine, Belgrade
3. Faculty of Medicine, Belgrade + Institute of Forensic Medicine “Milovan Milovanović”, Belgrade
4. Faculty of Medicine, Belgrade + University Hospital Medical Center “Bežanijska Kosa”, Department of Cardiology, Belgrade
5. Institute for Cardiovascular Diseases “Dedinje”, Belgrade
6. University Hospital Medical Center “Bežanijska Kosa”, Department of Cardiology, Belgrade + Faculty of Medicine, Belgrade