1. Division of Palliative Medicine, Department of Medicine, Washington University School of Medicine in St. Louis, St. Louis, Missouri, USA.
2. The Brown School at Washington University in St. Louis, St. Louis, Missouri, USA.
3. Department of Surgery, Division of Public Health Sciences, Washington University School of Medicine in St. Louis, St. Louis, Missouri, USA.
4. Department of Biobehavioral Health Sciences, University of Pennsylvania School of Nursing, Philadelphia, Pennsylvania, USA.
5. Department of Biostatistics, Epidemiology and Informatics, University of Pennsylvania Perelman School of Medicine, Philadelphia, Pennsylvania, USA.
6. Goldfarb School of Nursing at Barnes-Jewish College, St. Louis, Missouri, USA.
7. Department of Veterans Affairs, VA St. Louis Health Care System, St. Louis, Missouri, USA.
8. University of Maryland School of Social Work, Baltimore, Maryland, USA.