1. Department of Clinical Sciences Lund, Cardiology, Lund University, and The Section for Heart Failure and Valvular Disease, VO Heart and Lung Medicine, Skåne University Hospital, Lund, Sweden
2. Cardiology Unit, Department of Medicine Solna, Karolinska Institute, Stockholm, Sweden
3. Department of Cardiology, Sahlgrenska Academy, University of Gothenburg, and Sahlgrenska University Hospital, Gothenburg, Sweden
4. Departments of Cardiology and Clinical Physiology, Institution of Medicine and Health Sciences, Linköping University, Linköping, Sweden
5. Department of Medicine Solna, Karolinska Institute, and The Department of Respiratory Medicine and Allergy, Karolinska University Hospital, Stockholm, Sweden
6. Department of Public Health and Clinical Medicine, Heart Centre, Umeå University, Umeå, Sweden
7. Department of Medical Sciences, Cardiology, Uppsala University, and Uppsala Academic Hospital, Uppsala, Sweden