1. Department of Cardiology, Örebro University Hospital, Örebro, Sweden
2. School of Health and Medical Sciences, Örebro University, Örebro, Sweden
3. Centre for Health Care Sciences, Örebro County Council, Örebro, Sweden
4. Department of Health and Caring Sciences, University of Gävle, Gävle, Sweden
5. Department of Public Health and Caring Sciences, Section of Caring Sciences, Uppsala University, Uppsala, Sweden
6. School of Health and Caring Sciences, Linnéaus University, Växjö, Sweden
7. School of Health Sciences, Jönköping University, Jönköping, Sweden
8. Department of Internal Medicine, Division of Cardiology, County Hospital Ryhov, Jönkoping, Sweden
9. Department of Anaesthesia and Intensive Care, Örebro University Hospital, Örebro, Sweden