Affiliation: | 1. Department of Cardiothoracic Surgery, Lund University, Lund, Sweden;2. Division of Nursing Science, Department of Medical and Health Sciences, Link?ping University, Link?ping, Sweden;3. Department of Cardiothoracic Surgery, Link?ping University, Link?ping, Sweden;4. Department of Cardiothoracic Surgery, Sk?ne University Hospital Lund, Lund, Sweden;5. Department of Public Health and Caring Science, Uppsala University Hospital, Uppsala University, Uppsala, Sweden;6. Department of Cardiology, Sk?ne University Hospital Lund, Lund, Sweden |