1. Department of Clinical Sciences Lund, Cardiology, Lund University, and the Haemodynamic Laboratory, the Section for Heart Failure and Valvular Disease, VO Heart and Lung Medicine, Skåne University Hospital, Lund, Sweden;
2. Cardiology Unit, Department of Medicine, Karolinska Institute, Stockholm, Sweden;
3. Department of Public Health and Caring Science, Uppsala University and Uppsala University Hospital, Uppsala, Sweden;
4. Department of Molecular Medicine and Surgery, Section of Clinical Physiology, Karolinska Institute and Department of Clinical Physiology, Karolinska University Hospital, Stockholm, Sweden;
5. Department of Cardiology, Sahlgrenska University Hospital, the Sahlgrenska Academy, Gothenburg University, Gothenburg, Sweden;
6. Department of Medical Sciences Cardiology, Uppsala University, Uppsala, Sweden;
7. Department of Clinical Sciences Lund, Rheumatology, Lund University, and the Rheumatology Clinic, Skåne University Hospital, Lund, Sweden;
8. Departments of Cardiology and Clinical Physiology, Institution of Medicine and Health Sciences, Linköping University, Linköping, Sweden;
9. Department of Medicine, Karolinska Institute, and the Clinic for Pulmonary Medicine, Karolinska University Hospital, Stockholm, Sweden;
10. Department of Public Health and Clinical Medicine, Cardiology and the Heart Centre, Umeå University, Umeå, Sweden;
11. Department of Cardiology, Karolinska Institute, and Department of Cardiology, Södersjukhuset, Sweden, Stockholm;
12. Department of Clinical Physiology, Örebro University, and Örebro University Hospital, Örebro, Sweden