1. Faculty of MedicineUniversity of Belgrade Belgrade Serbia
2. Department of CardiologyClinical Centre of Serbia Belgrade Serbia
3. Department of Medicine, Karolinska Institutet, and Heart and Vascular ThemeKarolinska University Hospital Stockholm Sweden
4. Heart Failure Unit, CardiologyG. da Saliceto Hospital Piacenza Italy
5. Centre for Clinical and Basic Research, Department of Medical SciencesIRCCS San Raffaele Pisana Rome Italy
6. Serbian Academy of Sciences and Arts Belgrade Serbia