1. Department of Medical Sciences, Cardiovascular Epidemiology, Uppsala University, Uppsala, Sweden.
2. Division of Geriatric Medicine, Department of Clinical Sciences, Lund University, Malmö University Hospital, Malmö, Sweden.
3. Division of Cardiovascular Medicine, Department of Medicine, Stanford University School of Medicine, Stanford, California.
4. Stanford Cardiovascular Institute, Stanford University, Stanford, California.
5. Department of Medical Sciences, Molecular Epidemiology and Science for Life Laboratory, Uppsala University, Uppsala, Sweden.