1. School of Biological and Population Health Sciences, Oregon State University, Corvallis
2. Department of Epidemiology and Public Health, University College London, London, United Kingdom
3. Medical Research Council Lifecourse Epidemiology Unit, University of Southampton, Southampton, United Kingdom
4. Centre for Cognitive Ageing and Cognitive Epidemiology, University of Edinburgh, Edinburgh, United Kingdom
5. Cardiovascular Epidemiology Unit, Department of Public Health and Primary Care, University of Cambridge, Cambridge, United Kingdom
6. The National Institute for Health Research Blood and Transplant Unit in Donor Health and Genomics, University of Cambridge, Cambridge, United Kingdom