1. Department of Internal Medicine – Cardiology Charité University Medicine Berlin Germany
2. German Center for Cardiovascular Research (DZHK) Site Berlin Germany
3. Medical Clinic for Cardiology and Pulmonology, Campus Benjamin Franklin Charité University Medicine Berlin Germany
4. HealthTwiSt GmbH Berlin Germany
5. Department of Prevention and Health Promotion, School of Public Health Bielefeld University Bielefeld Germany
6. Comprehensive Heart Failure Center University of Würzburg Germany
7. Centre of Internal Medicine and Dermatology, Clinic for Internal Medicine and Psychosomatics Charité University Medicine Berlin Germany
8. Department of Cardiology and Department of Research and Education General Hospital Celje, Slovenia and Faculty of Medicine, University of Ljubljana Celje Slovenia
9. Faculty of Medicine University of Ljubljana Ljubljana Slovenia
10. Clinical Center Niš, Department of Internal Medicine University of Niš Serbia
11. Cardiology Department Zvezdara University Medical Center Belgrade Serbia
12. Center for Stroke Research Charité University Medicine Berlin Germany