1. Department of Neuroscience, Uppsala University, Uppsala, Sweden
2. Department of Medical Sciences, Molecular Medicine and Science for Life Laboratory, Uppsala University, Uppsala, Sweden
3. Department of Public Health and Clinical Medicine and Heart Center, Umeå University, Umeå, Sweden
4. Department of Medical Sciences, Clinical Chemistry, Uppsala University, Uppsala, Sweden
5. Department of Medical Epidemiology and Science for Life Laboratory, Uppsala University, Uppsala, Sweden
6. Wellcome Trust Centre for Human Genetics, University of Oxford, Oxford, U.K.
7. Department of Medical Sciences, Cardiovascular Epidemiology, Uppsala University, Uppsala, Sweden