1. Department of Medicine, Stanford University, Palo Alto, California, USA.
2. Extended Care and Palliative Medicine Service, Veterans Affairs Palo Alto Health Care System, Palo Alto, California, USA.
3. Journal of Palliative Medicine, Empire, Colorado, USA.
4. Section of Palliative Care and Medical Ethics, Department of Medicine, University of Pittsburgh, Pittsburgh, Pennsylvania, USA.
5. Indiana University Center for Aging Research, Regenstrief Institute, Indianapolis, Indiana, USA.
6. Brookdale Department of Geriatrics and Palliative Medicine, Icahn School of Medicine at Mount Sinai, New York, New York, USA
7. Division of Geriatrics, University of California, San Francisco, San Francisco, California, USA.
8. San Francisco Veterans Affairs Medical Center, San Francisco, California, USA.