1. San Francisco VA Health Care System, San Francisco, California, USA.
2. Department of Social and Behavioral Sciences, School of Nursing, University of California San Francisco, San Francisco, California, USA.
3. Department of Physiological Nursing, University of California San Francisco, San Francisco, California, USA.
4. Global Brain Health Institute, University of California San Francisco, San Francisco, California, USA.
5. The Mongan Institute and the Division of Palliative Care and Geriatric Medicine, Massachusetts General Hospital, Boston, Massachusetts, USA.
6. Brookdale Department of Geriatrics and Palliative Medicine, Icahn School of Medicine, New York, New York, USA.