1. Palliative Care and Aging, Division of General Internal Medicine, Department of Medicine, University of Colorado School of Medicine Anschutz Medical Campus, Aurora, Colorado, USA.
2. VA Palo Alto—Stanford Palliative Care Programs, Stanford School of Medicine, VA Palliative Care Quality Improvement Resource Center (QuIRC), Stanford, California, USA.
3. Division of General Internal Medicine, Department of Medicine, University of Colorado School of Medicine Anschutz Medical Campus, Aurora, Colorado, USA.
4. Palliative Care Services, University of California-Irvine School of Medicine, Irvine, California, USA.
5. Organizational Systems and Adult Health, University of Maryland Baltimore School of Nursing, Baltimore, Maryland, USA.