1. Leiden University Medical Center, Department of Gerontology and Geriatrics (D.N., R.G.J.W., S.T., S.P.M., A.J.M.d.C.), 2333 ZA Leiden, The Netherlands
2. Department of Ambulatory Care and Community Medicine (D.N.), University of Lausanne, CH-1011 Lausanne, Switzerland
3. Department of Public Health and Primary Care (J.G.), 2333 ZA Leiden, The Netherlands
4. Netherlands Consortium for Healthy Aging (R.G.J.W., A.J.M.d.C.), 2333 ZA Leiden, The Netherlands
5. Faculty of Medicine (D.J.S., N.S.), Glasgow G12 8QQ, United Kingdom
6. Institute of Cardiovascular and Medical Sciences (D.J.S., N.S., P.W., P.W.M.), University of Glasgow, Glasgow G12 8QQ, United Kingdom
7. Department of Cardiology (J.W.J.), 2333 ZA Leiden, The Netherlands
8. Robertson Centre for Biostatistics (I.F.), Glasgow G12 8QQ, United Kingdom
9. Institute for Evidence-Based Medicine in Old Age (S.P.M.), 2333 AA Leiden, The Netherlands
10. Department of General Internal Medicine (N.R.), University of Bern, CH-3012 Bern, Switzerland