1. Medical Research Council (MRC) Centre for Regenerative Medicine and UK Dementia Research Institute, University of Edinburgh, Edinburgh EH16 4UU, UK.
2. Institute of Cardiovascular and Medical Sciences, University of Glasgow, Glasgow G12 8QQ, UK.
3. Centre for Cognitive Ageing and Cognitive Epidemiology and MRC Institute of Genetics and Molecular Medicine, University of Edinburgh, Edinburgh EH4 2LF, UK.
4. Erasmus Medical Centre, 3015 CE Rotterdam, Netherlands.
5. Neurology Working Group of the Cohorts for Heart and Aging Research in Genomic Epidemiology (CHARGE).
6. Institute of Molecular Medicine, University of Texas Health Science Center, Houston, TX 77030, USA.
7. Department of Neurology, Boston University School of Medicine, Boston, MA 02118, USA.
8. Centre for Genomic and Experimental Medicine, University of Edinburgh, Edinburgh EH4 2LF, UK.
9. Academic Neuropathology, Centre for Clinical Brain Sciences, University of Edinburgh, Edinburgh EH16 4SB, UK.
10. Brain Research Imaging Centre, Centre for Clinical Brain Sciences, and UK Dementia Research Institute, University of Edinburgh, Edinburgh EH16 4SB, UK.