1. Division of Cardiology, Department of Medicine, Karolinska Institutet , Stockholm , Sweden
2. Heart and Vascular Theme, Karolinska University Hospital , Stockholm , Sweden
3. Department of Cardiology, University Heart and Vascular Centre Hamburg , Hamburg , Germany
4. Faculty of Medicine, University of Belgrade , Belgrade , Serbia
5. Serbian Academy of Sciences and Arts , Belgrade , Serbia
6. St George's Hospital Medical School , London , UK
7. IRCCS San Raffaele Roma , Rome , Italy
8. Faculty of Medicine, University of Warwick , Coventry , UK