1. Depatment of Internal Medicine, Mora hospital, 792 85 Mora, Sweden
2. Department of Medical Sciences, Uppsala University, 751 85 Uppsala, Sweden
3. Uppsala Clinical Research Center, 751 85 Uppsala, Sweden
4. Department of Surgical Sciences, Uppsala University, 751 85 Uppsala, Sweden
5. School of Health and Social Studies, Dalarna University, 791 88 Falun, Sweden
6. Division of Family Medicine and Primary Care, Department of Neurobiology, Care Science and Society, Karolinska Institute, Huddinge, 171 77 Stockholm, Sweden
7. Department Public Health and Clinical Science, Umeå University, 901 85 Umeå, Sweden
8. Department Clinical Science, Karolinska Institute, Danderyds Hospital, 182 88 Stockholm, Sweden
9. Center for Clinical Research, 791 82 Falun, Sweden
10. Department Cardiology, Uppsala University Hospital, 751 85 Uppsala, Sweden