1. Department of Internal Medicine III; Medical University Innsbruck; Innsbruck Austria
2. Department of Cardiology, Bellvitge University Hospital and IDIBELL; University of Barcelona Hospitalet de Llobregat; Barcelona Spain
3. Department of Cardiology; University Hospital 12 de Octubre, CIBERCV; Madrid Spain
4. Department of Cardiovascular, Respiratory, Nephrology, Anesthesiology and Geriatric Sciences; Sapienza University of Rome; Rome Italy
5. Department of Cardiology; University Hospital Canarias; San Cristóbal de La Laguna Tenerife Spain
6. Department of Cardiology; Copenhagen University Hospital, Rigshospitalet; Copenhagen Denmark
7. Intensive Care Department, Consorci Sanitari Integral; University of Barcelona; Barcelona Spain
8. Cardiology Department; Hospital Sanitas CIMA; Barcelona Spain
9. Department of Cardiology, Division of Clinical Physiology, Faculty of Medicine; University of Debrecen; Debrecen Hungary
10. Department of Internal Medicine and Comprehensive Heart Failure Center; University Hospital Würzburg; Würzburg Germany
11. Department for Medical Statistics, Informatics and Health Economics; Medical University Innsbruck; Innsbruck Austria
12. Department of Cardiology; University Medical Center Ljubljana; Ljubljana Slovenia
13. Department of Cardiology, Institute of Medical Sciences; Uppsala University Hospital; Uppsala Sweden
14. Cardiac Rehabilitation Center Grossgmain, Pensionsversicherungsanstalt; Teaching Hospital of Paracelsus Medical Private University; Salzburg Austria