1. Karolinska Institutet, Department of Clinical Sciences, Danderyd Hospital, Division of Cardiovascular Medicine, Stockholm, Sweden
2. Sophiahemmet University College, Stockholm, Sweden
3. Department of Nursing Health and Culture University West, Trollhättan, Sweden
4. Karolinska Institutet, Department of Clinical Sciences, Danderyd Hospital, Stockholm, Sweden
5. Department of Medical Sciences, Uppsala University Hospital, Uppsala, Sweden