1. Department of Medical and Health Sciences, Division of Nursing Science, Linköping University, Linköping, Sweden
2. Faculty of Health and Life Sciences, School of Health and Caring Sciences, Linnaeus University, Kalmar, Sweden
3. Palliative Research Centre, Ersta Sköndal University Collage and Ersta Hospital, Stockholm, Sweden
4. College of Nursing, University of Kentucky, Lexington, KY, United States
5. Department of Cardiology, County Council of Östergötland, Linköping, Sweden