1. Longitudinal Studies Section, Translational Gerontology Branch, National Institute on Aging, Baltimore, Maryland
2. Laboratory of Behavioral Neuroscience, National Institute on Aging, Baltimore, Maryland
3. Division of Epidemiology, Department of Health Sciences Research, Mayo Clinic, Rochester, Minnesota
4. Department of Neurology, Mayo Clinic, Rochester, Minnesota
5. Department of Psychiatry, University of California, San Francisco
6. Department of Neurology, University of California, San Francisco
7. Department of Epidemiology, University of California, San Francisco
8. Laboratory of Epidemiology and Population Studies, National Institute on Aging, National Institutes of Health, Baltimore, Maryland
9. Faculty of Medicine, University of Iceland, Reykjavik, Iceland
10. Karolinska Institutet, Aging Research Center, Department of Neurobiology, Care Sciences and Society, Stockholm University, Stockholm, Sweden
11. Division of Physiotherapy, Department of Neurobiology, Care Sciences and Society, Karolinska Institutet, Stockholm, Sweden
12. Karolinska University Hospital, Stockholm, Sweden
13. Stockholm Gerontology Research Center, Stockholm, Sweden
14. Geriatric Unit, Azienda Sanitaria di Firenze, Florence, Italy
15. Geriatria, Accettazione Geriatrica e Centro di ricerca per l’invecchiamento, IRCCS Istituto Nazionale Ricovero e Cura per Anziani, Ancona, Italy
16. Department of Epidemiology, Graduate School of Public Health, University of Pittsburgh, Pittsburgh, Pennsylvania
17. The Sticht Center for Healthy Aging and Alzheimer’s Prevention, Wake Forest School of Medicine, Winston-Salem, North Carolina