1. Philip R. Lee Institute for Health Policy Studies, University of California, San Francisco, San Francisco, CA, USA
2. Department of Humanities & Social Sciences, University of California, San Francisco, San Francisco, CA, USA
3. Global Brain Health Institute, University of California, San Francisco, San Francisco, CA, USA
4. Trinity College Dublin, the University of Dublin, Dublin, Ireland
5. Department of Medicine, Montefiore Medical Center and Albert Einstein College of Medicine, Bronx, NY, USA
6. The Saul R. Korey Department of Neurology, Albert Einstein College of Medicine, Bronx, NY, USA
7. Department of Medical Social Sciences, Feinberg School of Medicine, Northwestern University, Chicago, IL, USA
8. Division of General Internal Medicine and Geriatrics, Feinberg School of Medicine, Northwestern University, Chicago, IL, USA
9. Center for Applied Health Research on Aging (CAHRA), Feinberg School of Medicine, Northwestern University, Chicago, IL, USA
10. Memory and Aging Center, Department of Neurology, University of California, San Francisco, San Francisco, CA, USA
11. Division of Geriatrics, Department of Medicine, University of California, San Francisco, San Francisco, CA, USA
12. National Institute of Neurological Disorders & Stroke, National Institute of Health, Bethesda, MA, USA
13. Department of Neurology, University of California, Davis, Davis, CA, USA
14. Department of Family and Community Medicine, School of Medicine, University of California, San Francisco, San Francisco, CA, USA
15. Department of Neurology, Northwestern University Feinberg School of Medicine, Chicago, IL, USA
16. Division of Palliative Care and Geriatric Medicine, Department of Medicine, Massachusetts General Hospital, Boston, MA, USA
17. Mongan Institute Center for Aging and Serious Illness, Massachusetts General Hospital, Boston, MA, USA
18. Harvard Medical School, Boston, MA, USA