1. Department of Public Health and Community Medicine Institute of Medicine, Sahlgrenska Academy University of Gothenburg Gothenburg Sweden
2. Division of Cardiology Johns Hopkins University School of Medicine Baltimore Maryland USA
3. Department of Endocrinology Institute of Medicine, Sahlgrenska Academy, University of Gothenburg and Sahlgrenska University Hospital Gothenburg Sweden
4. Department of Preventive Medicine School of Medicine, UC San Diego San Diego California USA