1. NewCourtland Center for Transitions and Health, Department of Biobehavioral Health Sciences, University of Pennsylvania School of Nursing, Philadelphia, Philadelphia, PA, USA
2. Division of Palliative Medicine, Washington University in St. Louis School of Medicine, St. Louis, MO, USA
3. Department of Biostatistics and Epidemiology, Perelman School of Medicine, University of Pennsylvania, Philadelphia, PA, USA
4. Goldfarb School of Nursing, Barnes Jewish College, St. Louis, MO, USA