1. Department of Cardiology and Pneumology; University of Göttingen Medical Center; Göttingen Germany
2. Institute for cardiovascular diseases Dedinje; Belgrade Serbia
3. Faculty of Medicine; University of Belgrade; Belgrade Serbia
4. Center for Stroke Research Berlin; Charite University Medical School; Germany
5. Division of Cardiology and Metabolism - Heart Failure, Cachexia & Sarcopenia, Department of Cardiology, Campus Virchow-Klinikum; Charité - Universitätsmedizin Berlin; Berlin Germany
6. Berlin-Brandenburg Center for Regenerative Therapies (BCRT); Charité - Universitätsmedizin Berlin; Berlin Germany
7. Division of Cardiology; General Hospital Murska Sobota; Slovenia
8. Faculty of Medicine; University of Ljubljana; Slovenia