1. Department of Cardiothoracic Surgery, Lund University, Lund, Sweden.
2. The clinic for Cardiothoracic Surgery, Skane University Hospital, Lund, Sweden.
3. Medical Services, University Healthcare, Skane, Sweden
4. Department of Public Health and Caring Science, Uppsala University, and Uppsala University Hospital, Uppsala, Sweden.
5. Department of Rheumatology, Lund University, Lund, Sweden.
6. The clinic for Rheumatology, Skane University Hospital, Lund, Sweden.
7. Department of Cardiology, Clinical Sciences, Lund University, Lund, Sweden.
8. The Section for Heart Failure and Valvular Disease, Skane University Hospital, Lund, Sweden.