1. Centre on Patient Reported Data Haukeland University Hospital Bergen Norway
2. Department of Global Public Health and Primary Care University of Bergen Bergen Norway
3. Department of Health and Caring Sciences, Faculty of Health and Social Sciences Bergen University College Bergen Norway
4. Department of Sociology Loyola University Maryland Baltimore Maryland USA
5. Department of Endocrinology Oslo University Hospital Oslo Norway
6. Department of Pathology Case Western Reserve University School of Medicine Cleveland Ohio USA
7. Center for Clinical Heart Research, Department of Cardiology Oslo University Hospital Oslo Norway
8. Institute of Clinical Medicine University of Oslo Oslo Norway