1. Department of Social and Behavioral Sciences, School of Nursing, University of California, San Francisco, California.
2. San Francisco Veterans Affairs Medical Center, Geriatrics, Palliative, and Extended Care, San Francisco, California.
3. Division of Geriatrics, Department of Medicine, University of California, San Francisco, California.
4. Department of Family Health Care Nursing and School of Nursing, University of California, San Francisco, California.
5. Department of Physiological Nursing, School of Nursing, University of California, San Francisco, California.