1. Department of Clinical Science; University of Bergen; Bergen Norway
2. Kavli Research Center for Geriatrics and Dementia; Haraldsplass Hospital; Bergen Norway
3. School of Health and Welfare; Jönköping University; Jönköping Sweden
4. Department of Heart Disease; Haukeland University Hospital; Bergen Norway
5. Centre for Clinical Research; Haukeland University Hospital; Bergen Norway
6. Department of Cardiology; Stavanger University Hospital; Stavanger Norway